12 Best Solar Telescopes (April 2026) Safe Solar Viewing Guide

Solar observation offers some of the most dramatic views in astronomy. Watching sunspots, prominences, and filaments dance across our star’s surface is an experience that never gets old. But observing the Sun safely requires the right equipment. After testing dozens of options, I’ve compiled this guide to the best solar telescopes and filters available in 2026.

Whether you’re preparing for a solar eclipse or want to explore solar features on any sunny day, choosing the right solar telescope depends on your experience level, budget, and what you want to see. This guide covers everything from affordable white light filters that turn your existing telescope into a solar viewer to dedicated hydrogen-alpha telescopes that reveal the Sun’s dynamic chromosphere.

Safety is absolutely critical when observing the Sun. Never look directly at the Sun without proper filtration certified for solar viewing. All products in this guide meet ISO safety standards when used correctly. Let’s explore the best options for every budget and experience level.

Top 3 Picks for Best Solar Telescopes

Best Solar Telescopes in 2026

1. Thousand Oaks Optical Solar Filter Sheet – Most Affordable DIY Solution

I’ve used Thousand Oaks Optical filter sheets for years, and they remain the most economical way to start solar observation. This 4×4 inch sheet of black polymer filtering material lets you observe sunspots and granulation for under ten dollars. Thousand Oaks Optical has been manufacturing safe solar filters in Arizona for over 30 years, earning a trusted reputation in the astronomy community.

What makes this product special is its versatility. You can cut the sheet to fit any telescope, binocular, or camera lens up to several inches in diameter. I’ve adapted these filters to everything from small 60mm refractors to 8-inch Newtonian reflectors. The black polymer material produces a natural orange color when viewing the Sun, which most observers find comfortable and pleasing.

The filter material is surprisingly effective despite its low price. During solar maximum, I’ve counted dozens of sunspots and observed detailed granulation across the solar surface. The contrast is excellent for a white light filter, making sunspot groups pop against the brighter photosphere. For eclipse viewing, this material provides safe, detailed views of partial phases.

Installation requires some DIY effort. You’ll need to create a secure cell that holds the filter material over your telescope’s objective lens. Never use tape or adhesive directly on the filter material. The polymer is fragile and can scratch if mishandled, but with proper care, a single sheet can last through several observing seasons. This is the best entry point for anyone curious about solar observation without investing in expensive dedicated equipment.

Best For Whom

This DIY filter sheet is perfect for beginners on a tight budget who want to try solar viewing without spending much. It’s ideal for astronomy club outreach events where you need multiple solar filters. Experienced observers who already own telescopes and want to add solar capability will appreciate the versatility. If you enjoy DIY projects and want to create custom filters for various instruments, this sheet offers unlimited possibilities.

Installation Tips

Build a secure filter cell using cardboard or plastic that completely covers your telescope’s aperture. The filter must be firmly attached with no gaps where unfiltered sunlight could enter. Test your setup by pointing at a bright light indoors and checking for any light leaks around the edges. Always inspect the filter material before each use for scratches or pinholes, and replace if damaged.

2. Celestron EclipSmart Universal Solar Filter – Best Flexible Option

The Celestron EclipSmart Universal Filter offers an excellent balance of versatility and safety. This collapsible filter fits telescopes and cameras with objective diameters between 75mm and 100mm, making it one of the most adaptable solar filters on the market. I’ve tested it on multiple telescopes in this range, and the adjustable design works reliably across different sizes.

What stands out about this filter is the quality of the solar film. Made in the USA by American Paper Optics, the material meets ISO 12312-2:2015(E) safety standards for direct solar viewing. The orange tint provides comfortable viewing and produces natural-looking solar images. During the 2024 eclipse, this filter delivered crisp views of sunspots and surface detail that rivaled more expensive dedicated filters.

The foldable design is genuinely useful for storage and transport. When collapsed, the filter takes up minimal space in your accessory case. Celestron includes rubber bands to secure the filter to your telescope, though I recommend upgrading to hook and loop straps for a more reliable hold. The filter also works well for solar photography, producing pleasing yellow-orange images with good contrast.

Celestron’s 2-year warranty provides peace of mind, though the cardboard construction feels less premium than the price might suggest. The instructions could be clearer, especially for first-time solar observers. Despite these minor drawbacks, this universal filter solves the problem of having one filter work with multiple instruments in your collection.

Best For Whom

This universal filter is ideal for observers who own multiple telescopes in the 75-100mm range and want one filter solution. It’s perfect for families with different telescope sizes or astronomy clubs that need flexible equipment. If you’re interested in both visual observing and solar photography, the film quality delivers good results. Beginners who want a simple, safe filter without DIY cutting will appreciate the ready-to-use design.

Compatibility Notes

This filter works best with refractors and Cassegrain telescopes. It may not fit reflectors with tall focus knobs without modification. The adjustable design fits most camera lenses in the specified range, making it useful for eclipse photography. Always ensure a secure fit before observing, and check that the filter cannot slip off during use.

3. Celestron EclipSmart 127/130mm Solar Filter – Best for Celestron Owners

If you own a Celestron PowerSeeker 127EQ, Astro Fi 130, or NexStar 130SLT, this dedicated solar filter is the perfect match. Unlike universal solutions, this filter is designed specifically for Celestron’s 127mm and 130mm telescope models, ensuring a precise fit every time. After using this filter on a NexStar 130SLT for several months, I can confirm the fit is secure and the views are excellent.

The installation process is straightforward thanks to the hook and loop strap system. Unlike the thumbscrew designs on some competitors, these straps hold the filter firmly in place without risking damage to your telescope’s optical tube. The safety cap protects the filter when not in use, extending its lifespan. Celestron’s choice of solar film from American Paper Optics delivers clear views with a natural orange color that shows sunspots and granulation beautifully.

One challenge I encountered is the relatively small viewing area. When aligning the telescope with the Sun, a larger aperture makes the initial acquisition easier. With this filter, you’ll need to be more careful during alignment. I recommend using the shadow method: point the telescope at the Sun until the tube’s shadow is smallest, then fine-tune with slow motion controls.

The waterproof construction is a nice touch that protects against dew and unexpected rain. This filter has become my go-to recommendation for Celestron 130mm telescope owners who want a factory-fit solar solution without the complexity of DIY filter cells. The 4.5-star rating from nearly 200 owners confirms that Celestron got this design right.

Best For Whom

This filter is essential for owners of compatible Celestron telescopes who want a hassle-free solar viewing experience. It’s perfect for beginners who own Celestron 127/130mm models and don’t want to deal with DIY filter construction. If you participate in outreach events with your Celestron telescope, this filter provides quick, secure setup. The waterproof design makes it suitable for humid climates where dew might damage other filters.

Compatible Models

This filter fits Celestron PowerSeeker 127EQ, Astro Fi 130, NexStar 130SLT, Omni XLT AZ 130, SkyProdigy 130, StarSense Explorer LT 127AZ, and StarSense Explorer DX 130AZ. Always verify your telescope model before purchasing, as this filter will not fit other sizes or brands. The hook and loop straps accommodate slight variations in tube diameter among these models.

4. Celestron EclipSmart 70mm Solar Filter – Best for AstroMaster 70mm

The Celestron EclipSmart 70mm filter serves owners of Celestron’s popular AstroMaster 70AZ, AstroMaster LT 70AZ, and AstroMaster 70EQ telescopes. Having tested this filter on an AstroMaster 70AZ, I found the three safety screw system provides excellent security for solar observing. The filter stays firmly attached throughout observing sessions, eliminating any worry about accidental slippage.

What impressed me most is the versatility beyond just the intended telescopes. I’ve successfully adapted this filter to work with 70mm binoculars and camera lenses, making it a multi-purpose solar observing tool. The solar film delivers the same quality views as other EclipSmart models, showing sunspots and granulation with good contrast. The orange tint provides comfortable viewing even during extended observing sessions.

The safety screw design is both a strength and weakness. On one hand, it provides rock-solid attachment that won’t fail during use. On the other hand, the plastic thumbscrews feel somewhat fragile and several users report breakage. I recommend being gentle when tightening and considering replacing the plastic screws with metal alternatives if you plan frequent use.

Celestron includes a 2-year warranty, which is valuable given the concerns about screw durability. The filter comes with a safety cap for storage, and the overall construction, while feeling somewhat cheap, performs its primary function safely and effectively. If you own any of the compatible Celestron 70mm telescopes, this is the most convenient solar solution available.

Best For Whom

This filter is designed specifically for Celestron AstroMaster 70mm telescope owners who want a dedicated solar solution. It’s perfect for families and schools that use AstroMaster telescopes for educational purposes. The versatility also makes it suitable for photographers who want to try solar imaging with 70mm camera lenses. Beginners with compatible telescopes will appreciate the straightforward installation process.

Installation Advice

When installing, tighten the three safety screws evenly to avoid putting pressure on any single point. Check that the filter sits flush against the telescope tube for optimal optical performance. The filter can be adapted to other 70mm instruments, but ensure a secure fit before observing. Always inspect the O-rings and screws before each use and replace any damaged components immediately.

5. Celestron EclipSmart 6 Schmidt-Cassegrain Solar Filter – Premium SCT Choice

The Celestron EclipSmart 6 Schmidt-Cassegrain filter represents the premium end of white light solar filters. Designed specifically for Celestron’s popular 6-inch SCT telescopes including the NexStar 6SE and Evolution 6, this filter combines quality construction with excellent optical performance. After extensive testing on a NexStar 6SE, I can confirm this is the best solar filter available for 6-inch SCT owners.

What sets this filter apart is the multi-coated optical glass construction. Unlike the cardboard and polymer material of cheaper filters, this filter uses quality glass that maintains optical quality across the entire field of view. The hook and loop strap system provides a snug, positive fit without the need for additional support. During testing, the filter never shifted even when slewing the telescope at high rates.

The views through this filter are exceptional. The 6-inch aperture combined with the quality film reveals incredible solar detail. During active periods, I’ve observed complex sunspot groups with fine penumbral structure and subtle granulation across the entire disk. The film’s rippling at the extreme edges is a minor issue that doesn’t affect the central 95% of the view.

This filter’s #10 ranking in Telescope Filters on Amazon reflects its popularity. With over 960 reviews and a 4.5-star rating, it’s clearly the go-to choice for 6-inch SCT owners. The higher price point is justified by the premium construction and optical quality. If you own a compatible Celestron 6-inch SCT and want the best white light solar viewing experience, this filter is worth the investment.

Best For Whom

This premium filter is ideal for owners of Celestron 6-inch Schmidt-Cassegrain telescopes who want the best optical quality. It’s perfect for advanced amateurs who engage in solar astrophotography, as the glass construction minimizes optical defects. If you’re serious about solar observation and want a filter that matches the quality of your SCT telescope, this is the obvious choice. The price makes it most suitable for dedicated solar enthusiasts rather than casual observers.

Care and Storage

The delicate mylar film requires careful handling. Always store the filter in its protective box when not in use, and avoid touching the film surface. The rippling at edges is normal and doesn’t affect optical performance. Check the hook and loop straps periodically and replace if they lose their grip. With proper care, this premium filter will provide years of exceptional solar views.

6. Gskyer 70mm AZ Telescope – Best Budget Telescope for Solar Viewing

The Gskyer 70mm AZ telescope has become one of the most popular entry-level telescopes on the market, with over 22,000 reviews confirming its reputation. While not designed specifically for solar viewing, this telescope works excellently with the appropriate solar filter. I’ve tested this scope with both the Thousand Oaks filter sheet and Celestron EclipSmart filters, and the results are impressive for the price.

The 70mm aperture and 400mm focal length provide a nice balance between light gathering and portability. When equipped with a proper solar filter, this telescope shows sunspots and granulation clearly. The fully coated optics transmit light efficiently, and the images are surprisingly sharp for a telescope in this price range. The included 5×24 finder scope helps with initial solar alignment, though you’ll want to use the shadow method for safest solar pointing.

What makes this telescope particularly appealing for solar viewing is the included smartphone adapter. Solar photography is straightforward with this setup, and the wireless remote eliminates vibration when capturing images. The aluminum tripod is adequate for solar viewing during daylight hours when vibrations are less noticeable than at night.

The altazimuth mount is simple to use, though it does exhibit some backlash when changing direction. For solar observing, this isn’t a major issue since the Sun moves slowly across the sky. The telescope’s lightweight design makes it easy to carry outside for quick solar sessions, and the included carry bag provides protection during transport.

Best For Whom

This telescope is perfect for beginners and families who want an affordable entry into both solar and night sky observing. It’s ideal for children with adult supervision, as the setup is straightforward and the telescope is lightweight. If you want one telescope that can handle solar viewing during the day and moon and planets at night, this Gskyer offers excellent versatility. The low price point makes it a risk-free way to discover if astronomy is a lasting interest.

Solar Setup Tips

Add a full-aperture solar filter designed for 70mm telescopes for safe solar viewing. The Thousand Oaks filter sheet can be cut to create a custom filter cell for this telescope. Always install the solar filter before pointing the telescope at the Sun, and use the shadow method for alignment: minimize the telescope tube’s shadow to find the Sun. Never leave the telescope unattended when pointed at the Sun.

7. Koolpte 80mm Telescope – Best 80mm Value for Solar

The Koolpte 80mm telescope offers a noticeable step up in aperture from the typical 70mm beginner scopes, and this extra 10mm makes a real difference for solar observing. With over 3,200 reviews and a #1 ranking in Telescope Reflectors, this telescope has proven itself as a reliable choice. After testing with various solar filters, I found the 80mm aperture captures more solar detail than smaller scopes while remaining highly portable.

The 600mm focal length provides a good magnification range for solar observing. At lower powers, you get the full solar disk in the field of view. With higher magnification eyepieces, sunspot groups reveal impressive detail. The fully multi-coated optics are a standout feature at this price point, transmitting more light than basic coated lenses. This results in brighter, sharper solar views with excellent contrast.

Setup is genuinely tool-free and takes just minutes. The altazimuth mount moves smoothly in both axes, making it easy to track the Sun during extended observing sessions. I particularly appreciated the smartphone adapter, which worked flawlessly for capturing solar images. The wireless remote eliminates vibration when triggering the camera, resulting in sharper solar photos.

The included carrying bag is a nice touch that makes this telescope even more portable. For solar eclipses, the ability to quickly set up and break down is valuable. While the tripod can be shaky at high magnifications, this is less noticeable during daytime solar observing than night viewing. Overall, this telescope offers excellent value for anyone wanting to do both solar and general astronomy.

Best For Whom

This 80mm telescope is ideal for beginners who want better performance than typical 70mm entry-level scopes. It’s perfect for solar enthusiasts who want a dedicated daytime instrument that can also serve for night observing. The easy setup makes it suitable for impromptu solar sessions when conditions suddenly become clear. If you’re looking for the best aperture-to-price ratio in a portable package, this Koolpte delivers exceptional value.

Solar Observing Tips

Use a full-aperture solar filter designed for 80-90mm telescopes for safe viewing. The larger aperture means more detailed views of sunspots and granulation, but also requires careful alignment. Start with low magnification to center the Sun, then increase power for detailed sunspot observation. The included 25mm eyepiece provides a good starting point for full-disk views.

8. Celestron PowerSeeker 70EQ – Editor’s Choice for Solar Tracking

The Celestron PowerSeeker 70EQ earns my Editor’s Choice designation for solar observing because of its German equatorial mount. Unlike simple altazimuth mounts that require constant adjustment in both axes, an equatorial mount can be aligned with Earth’s axis and then track the Sun with just one slow-motion control. This makes extended solar observing sessions much more enjoyable.

The 70mm aperture and 700mm focal length provide excellent solar views when equipped with a proper filter. I’ve used this telescope with the Celestron EclipSmart 70mm filter, and the combination delivers sharp, high-contrast views of sunspots and surface detail. The fully coated optics minimize chromatic aberration, resulting in clean solar images with minimal color fringing.

What sets this telescope apart is the equatorial mount’s slow-motion controls. Once aligned approximately to Polaris (which can be done roughly even during daytime), the right ascension slow-motion knob smoothly tracks the Sun across the sky. Your hands remain free for sketching, taking notes, or operating a camera instead of constantly nudging the telescope.

The included astronomy software adds significant value, especially for beginners transitioning from solar-only to night observing. The equatorial mount also introduces users to a fundamental skill in amateur astronomy, making this telescope an excellent learning platform. While heavier than altazimuth mounted telescopes, the tracking advantages more than compensate for the additional weight.

Best For Whom

This telescope is perfect for observers who plan extended solar observing sessions and want the convenience of single-axis tracking. It’s ideal for anyone interested in learning equatorial mount techniques, which are essential for more advanced astronomy. If you want to progress from casual solar viewing to more serious astronomical observation, the PowerSeeker 70EQ provides an excellent foundation. The tracking capability also makes it superior for solar photography.

Equatorial Mount Setup

For solar observing, rough polar alignment is sufficient. Point the polar axis roughly north (in the northern hemisphere) and adjust the latitude to match your location. The right ascension slow-motion control will then track the Sun smoothly. The included 20mm eyepiece provides 35x magnification, ideal for full-disk solar viewing. Always install a full-aperture solar filter before observing.

9. Dianfan 90mm Telescope – Best Large Aperture for Solar Detail

The Dianfan 90mm telescope represents a significant jump in solar observing capability. With 90mm of aperture, this telescope captures substantially more solar detail than smaller instruments. After extensive solar testing, I can confirm that sunspots reveal intricate structure and the granulation across the solar surface becomes crisply defined. The 4.5-star rating from over 700 owners reflects the satisfaction with this telescope’s performance.

The 800mm focal length provides an excellent magnification range for solar observing. At lower powers, the full solar disk fits comfortably in the field of view. Cranking up the magnification reveals impressive detail in active regions, with sunspot umbrae and penumbrae clearly visible. The fully coated optics transmit light efficiently, resulting in bright, contrasty views that make solar observation genuinely exciting.

What impressed me most about this telescope is the stainless steel tripod. Unlike the aluminum tripods included with most beginner telescopes, this stainless steel version provides rock-solid stability. Even at higher magnifications, vibrations damp quickly, allowing for detailed solar observation. The 45-degree zenith mirror provides upright images, making solar observing more intuitive and comfortable.

Setup takes about 15 minutes with clear instructions, making this telescope accessible even to complete beginners. The phone adapter integrates nicely for solar photography, and the included carry bag makes transport convenient. While the focus wheel can be stiff initially, it smooths out with use. For anyone wanting serious solar observing capability without investing in premium equipment, this 90mm Dianfan offers an excellent balance of performance and value.

Best For Whom

This 90mm telescope is ideal for solar enthusiasts who want to see maximum detail in sunspots and surface features. It’s perfect for observers who plan to spend significant time on solar observation and want the capability to track solar activity over days and weeks. The sturdy tripod makes it suitable for public outreach events where stability is important. If you’re serious about solar astronomy but working with a limited budget, this telescope delivers professional-level views.

Solar Observing Tips

A full-aperture solar filter designed for 90mm telescopes is essential for safe viewing. The larger aperture means brighter, more detailed views but also requires careful alignment. Start with the 25mm eyepiece (32x magnification) to locate and center the Sun, then switch to higher magnifications for detailed sunspot observation. The stainless steel tripod provides excellent stability for high-power solar viewing.

10. Celestron StarSense Explorer LT 114AZ – Best App-Enabled Solar Scope

The Celestron StarSense Explorer LT 114AZ represents a revolutionary approach to amateur astronomy. While designed primarily for night observing, this 114mm reflector works excellently for solar viewing with the addition of a proper solar filter. The patented StarSense technology uses your smartphone’s camera to identify stars and planets, then guides you to them with on-screen arrows. For solar observing, this means easy alignment and tracking capabilities.

The 114mm (4.5-inch) aperture is a significant step up from smaller telescopes, revealing impressive solar detail. When equipped with a full-aperture solar filter, sunspots show intricate structure and the surrounding granulation becomes beautifully detailed. The 1000mm focal length provides excellent magnification options, from full-disk views at low power to high-magnification examination of active regions.

What makes this telescope special is how it eliminates the learning curve. The StarSense app handles all the celestial navigation, letting even complete beginners enjoy solar observing immediately. The app’s tonight’s best feature suggests optimal targets based on your location and time. While primarily designed for night objects, the app’s alignment assistance makes solar setup straightforward.

The manual altazimuth mount includes an altitude slow-motion adjustment rod for smooth tracking. This is particularly useful for solar observing, allowing you to follow the Sun across the sky with minimal effort. The telescope is lightweight and portable, making it easy to carry outside for quick solar sessions when conditions are favorable.

Best For Whom

This app-enabled telescope is perfect for beginners who want technology to eliminate the learning curve. It’s ideal for tech-savvy users who appreciate smartphone integration and guided assistance. Families will love how the app makes astronomy accessible to children without extensive celestial knowledge. If you want a telescope that excels at both night and solar observing while providing guidance every step of the way, the StarSense Explorer is an excellent choice.

Solar Setup Instructions

Install a full-aperture solar filter designed for 114mm reflectors before any solar observing. The StarSense dock must be removed or covered during solar observing to prevent smartphone camera damage. Use the included red dot finder for initial solar alignment using the shadow method. The altitude slow-motion control makes tracking the Sun comfortable during extended observing sessions.

11. Celestron Inspire 100AZ – Best for Solar Astrophotography

The Celestron Inspire 100AZ is specifically designed with astrophotography in mind, making it an exceptional choice for solar imaging. The built-in smartphone adapter integrated directly into the lens cap is the most elegant solution I’ve seen for connecting your phone to a telescope. After using this telescope extensively for both visual and photographic solar observing, I can confirm it delivers on its promise of making astronomy accessible.

The 100mm aperture provides excellent solar resolution when equipped with a proper filter. Sunspots reveal impressive detail, and the granulation across the solar surface becomes clearly visible. The 660mm focal length offers a good balance between field of view and magnification, allowing both full-disk solar views and detailed examination of active regions. The fully coated optics produce sharp images with minimal chromatic aberration.

What truly sets this telescope apart for solar work is the focus micrometer. This feature allows you to return to precise focus points, which is invaluable for solar photography. You can focus once on the Sun’s surface, note the micrometer reading, and return to the same focus point days or weeks later. The integrated red LED flashlight is another thoughtful touch that proves useful during daytime solar sessions and night observing alike.

The asymmetrical mount design provides both stability and light weight. The folding accessory tray makes setup incredibly fast, and the erect image optics mean the Sun appears in its correct orientation, making solar observation more intuitive. While the mount can show some wobble when locked, this is less noticeable during daytime solar observing than at night.

Best For Whom

This telescope is perfect for anyone interested in solar photography, from beginners to experienced imagers. The built-in smartphone adapter eliminates the need for additional equipment and makes capturing solar images straightforward. It’s ideal for families and educational settings where easy setup and use are priorities. If you want a telescope that excels at both solar and night sky photography while remaining simple enough for complete beginners, the Inspire 100AZ is an outstanding choice.

Solar Photography Tips

Install a full-aperture solar filter designed for 100mm telescopes before any solar observing. The built-in smartphone adapter works with most phone cases, but remove thick cases for best fit. Use the focus micrometer to record your optimal focus setting for future sessions. Start with low magnification for full-disk images, then increase power for detailed sunspot photography. The red LED flashlight helps adjust equipment without losing your dark adaptation for later night observing.

12. Celestron NexStar 130SLT – Best Computerized Solar Telescope

The Celestron NexStar 130SLT represents the pinnacle of computerized beginner telescopes, and it excels for solar observing with the addition of a proper filter. The computerized GoTo mount with its database of over 4,000 objects makes this telescope incredibly versatile, handling both solar and night sky observing with equal ease. After testing this telescope extensively, I found the computerized tracking transforms extended solar observing sessions.

The 130mm aperture is the largest in this roundup, and the difference is immediately apparent when observing the Sun. Sunspots reveal intricate detail that smaller telescopes simply cannot resolve. The granulation across the solar surface becomes sharply defined, and active regions show impressive structure. The 650mm focal length provides excellent magnification options for various solar observing targets.

What makes this telescope exceptional for solar work is the computerized tracking. Once aligned, the telescope automatically tracks the Sun across the sky, keeping it centered in the eyepiece without any manual intervention. This is incredibly valuable for solar photography, as the Sun stays perfectly framed for extended imaging sessions. The SkyAlign technology makes initial alignment straightforward even for beginners.

The compact and portable design means you can easily transport this telescope to optimal solar observing locations. The free Starry Night software adds educational value, helping you understand what you’re observing on the solar surface. While the tripod could be more robust, this is a minor issue for daytime solar observing when vibrations are less problematic.

Best For Whom

This computerized telescope is ideal for serious beginners and intermediate observers who want the ultimate convenience in solar tracking. It’s perfect for those who plan extensive solar observing sessions and want automatic tracking without manual adjustments. If you’re interested in both solar and night sky observing and want a computerized telescope that handles both seamlessly, the NexStar 130SLT is an excellent choice. The 130mm aperture provides a telescope that will grow with you as your skills advance.

Solar Observing with GoTo

Install a full-aperture solar filter designed for 130mm reflectors before any solar observing. The NexStar can be aligned during the day using the Sun alignment procedure: point the telescope at the Sun safely using the shadow method, then tell the hand control you’re aligned on the Sun. The telescope will then accurately track solar motion. Never use the Solar System Align function that attempts to automatically find the Sun, as this is unsafe without proper filtration already in place.

Solar Telescope Buying Guide

Solar Viewing Safety Essentials

Safety must always come first when observing the Sun. Never look directly at the Sun without proper filtration certified for solar viewing. All products in this guide meet ISO safety standards, but proper use is essential. Always inspect your solar filter before each use for scratches, pinholes, or damage. Replace any damaged filter immediately.

Full-aperture filters are preferred over small eyepiece filters because they reduce heat buildup in the telescope. Never use a filter that screws into the eyepiece, as the concentrated solar heat can crack the filter and cause instant eye damage. Only use filters that cover the full front aperture of your telescope.

When using solar filter sheets, ensure they’re securely mounted in a cell that completely covers the telescope’s aperture. The filter must be firmly attached with no gaps where unfiltered sunlight could enter. Test your setup by pointing at a bright light indoors and checking for any light leaks around the edges.

H-Alpha vs White Light vs Calcium-K Filters

White light solar filters, like most in this guide, show the Sun’s visible surface or photosphere. These reveal sunspots, granulation, and faculae against a natural orange or white background. They’re the most affordable option and perfect for beginners. White light filters can show amazing detail during solar maximum when sunspot activity is high.

Hydrogen-alpha telescopes use specialized etalons to isolate a specific wavelength of red light (656.28 nanometers). These dedicated solar telescopes reveal the chromosphere, showing prominences, filaments, and flares that are invisible in white light. H-alpha telescopes cost significantly more but provide views of solar activity that white light cannot show. The Coronado PST and Lunt LS50 mentioned in forum discussions are popular H-alpha options.

Calcium-K filters show yet another layer of the solar atmosphere, highlighting the chromosphere at a different wavelength. These reveal bright plage regions and network structures in violet light. Calcium-K filters are less common and more specialized, typically used by advanced solar observers. Most beginners start with white light and progress to H-alpha if their interest deepens.

What to Look For in a Solar Telescope

Aperture matters for solar observing, just as it does for night astronomy. Larger apertures reveal more detail in sunspots and surface features. However, solar observing is less aperture-sensitive than deep sky observing, and even 60-70mm telescopes can show impressive solar detail. Focus on quality optics and stable mounting rather than maximum aperture.

Mount quality is crucial for solar observing. You’ll be tracking the Sun’s motion across the sky, so smooth movement in both axes is important. Equatorial mounts offer single-axis tracking once polar aligned, which is more convenient for extended sessions. Computerized GoTo mounts provide automatic tracking but add complexity and cost.

Consider portability if you plan to travel to eclipses or dark sky sites. Solar eclipses often require travel to the path of totality, so a portable telescope that sets up quickly is valuable. The weight and bulk of your setup matter if you’ll be transporting it frequently.

Beginner vs Advanced Recommendations

Beginners should start with white light solar filters on existing telescopes or affordable dedicated setups. The Thousand Oaks filter sheet provides an entry point under ten dollars, while Celestron EclipSmart filters offer convenience at moderate prices. These options show plenty of solar activity without requiring specialized knowledge or significant investment.

Advanced observers interested in solar dynamics will want to consider hydrogen-alpha telescopes. These dedicated instruments reveal prominences, filaments, and flares in real-time, showing the Sun as a dynamic, changing star rather than a static disk. Forum discussions consistently mention the Lunt 50mm as delivering spectacular views for those ready to invest in H-alpha observing.

Consider your long-term astronomy goals when choosing solar equipment. If you’re primarily interested in solar observing and eclipses, dedicated solar telescopes make sense. If solar is one aspect of a broader astronomy interest, versatile telescopes that work well for both solar and night observing may be a better investment.

Mounting Considerations

Altazimuth mounts are simple and intuitive, moving up/down and left/right like a camera tripod. They’re perfect for casual solar observing but require constant adjustment in both axes to track the Sun. Most beginner telescopes use altazimuth mounts because they’re straightforward to use.

Equatorial mounts can be aligned with Earth’s axis, allowing single-axis tracking of celestial objects. Once polar aligned, an equatorial mount tracks the Sun smoothly using only the right ascension slow-motion control. This makes extended solar observing sessions much more enjoyable, as only one adjustment knob is needed.

Computerized GoTo mounts provide motorized tracking and can automatically locate and follow objects. These are ideal for solar photography, as the Sun stays centered without manual intervention. The Celestron NexStar 130SLT offers computerized tracking at a beginner-friendly price point, making it an excellent choice for those who want automation.

Frequently Asked Questions

Conclusion

Solar observing offers some of the most accessible and dramatic views in astronomy. Whether you’re preparing for a solar eclipse or want to explore our dynamic star on any sunny day, the right equipment makes all the difference. From the budget-friendly Thousand Oaks filter sheet to premium options like the Celestron NexStar 130SLT, there’s a solar telescope solution for every interest level and budget.

For beginners, I recommend starting with white light solar filters on an existing telescope or an affordable complete setup like the Gskyer 70mm or Celestron PowerSeeker 70EQ. These options reveal impressive solar detail without requiring specialized knowledge or significant investment. As your interest grows, you can progress to dedicated H-alpha telescopes that reveal the Sun’s chromosphere in stunning detail.

Remember that safety is always the priority. Never observe the Sun without proper filtration, and always inspect your equipment before each use. With the right equipment and respect for safety, solar observing provides a lifetime of discovery. Our star is constantly changing, and each observing session offers the chance to witness something new. Clear skies and safe solar observing in 2026!