Astronomy binoculars are a must-have item for anyone with a passion for outdoor activities like stargazing. They can also come in handy when sightseeing, watching sporting events, attending concerts, and more.
Our astronomy expert, Richard J. Bartlett, reviewed dozens of binoculars for stargazing to identify the best of the best, based on factors such as magnification, aperture, field of view (FOV), and value for the money. After careful consideration, he chose the Celestron SkyMaster 20×80 as his top pick. The well-constructed binoculars are specifically designed for astronomy and deliver sharp focusing and excellent image quality. Other features that helped these binoculars stand out from the pack include generous eye relief for spectacle wearers and an included tripod mount. Read how he chose the top 5.
Our Astronomy Expert’s Top 4 Astronomy Binoculars
Here are the top picks from our astronomy expert. Compare the ratings and features of different models.
|Expert’s Top Picks||Model||Rating||Water-Resistant||Tripod Mount||Fully Multi-Coated Lenses|
|Best Overall||Celestron SkyMaster 20×80|
|Best Budget Buy||SkyGenius 10×50|
|Best 7×50 Binoculars||Orion Scenix 7×50|
|Best 10×50 Binoculars||Opticron Adventurer II 10×50 Binoculars|
|Best 15×70 Binoculars||Orion Astronomy 15×70|
*Ratings are on a scale of 1 to 5 and based on reviews, feedback, and opinions of actual customers
In This Article
Who Should Buy Astronomy Binoculars?
- Astronomy beginners – Binoculars are a good choice for stargazers who are just learning about the night sky and who want to discover more. They’re also an excellent choice for exploring the Moon.
- Stargazers who want portable equipment – Unlike a telescope, binoculars are often relatively small and light, making them a great choice for anyone planning to observe the night sky while on the go.
Who Should Not Buy Astronomy Binoculars?
- Anyone who wants to seriously observe the planets – Unfortunately, most binoculars lack the power necessary to show the planets as anything more than points of light.
- Anyone who wants to observe galaxies – While binoculars can be great for star clusters, multiple stars and nebulae, galaxies are often too small and faint. However, it can be a fun challenge to track them down!
Research Tips (from an Astronomy Expert)
As an astronomy expert, I often get asked how to choose the best binoculars for stargazing. Here are some tips and best practices to consider when making a buying decision. Be sure to do adequate research on the product you are considering purchasing to look for key features and ask your friends and family (especially your fellow stargazers) if they have any recommendations on the best astronomy binoculars for your specific needs.
- Check the magnification and aperture – The numbers separated by an “X” on binoculars show magnification and aperture.1 The first number is the magnification, while the second number is the aperture measured in millimeters. The aperture is the width of the objective lenses. These are the lenses that are pointed up toward the sky. For example, 10×50 binoculars have a magnification of 10x and objective lenses 50mm in diameter. The larger the objective lenses, the more light the binoculars can gather.2 As a result, you’ll see more and fainter objects and greater detail. For example, while 10×50 binoculars are common, you can also buy 20×50’s, but these won’t add a lot to the observing experience. Your target will simply appear twice as large. However, use 20×80’s and you’ll not only see your target twice as large, but you’ll also see more.
- Consider the field of view (FOV) – The field of view, or FOV, is the area (measured in degrees or feet) that can be seen when looking through binoculars.3 The greater the magnification, the lower the FOV. Binoculars with a wide FOV are ideal for activities like birdwatching where you need to spot things without moving the binoculars around. By comparison, astronomers like to appreciate the entire view and prefer binoculars that can provide both a higher magnification and a wide FOV.
- Exit pupil diameter is important for low-light conditions – The exit pupil is the bright circle that can be seen in the middle of each eyepiece when binoculars are held at arm’s length.4 The diameter of the exit pupil can be calculated by dividing the objective lens diameter by the magnification. The larger the exit pupil diameter, the brighter the image.5 This is an important consideration if you’ll be using your binoculars in low-light conditions.
- Choose astronomy binoculars that are a comfortable weight – The weight of binoculars is usually measured in pounds. It’s a good idea to choose binoculars that are lightweight enough to be held for long periods of time. However, some sacrifices may need to be made as binoculars with larger objective lenses will be heavier.
- If you wear glasses, consider eye relief – Eye relief is a measurement of the distance from the eyepiece to where the exit pupil is formed. If you wear glasses, longer eye relief is preferable as you’ll be able to hold the binoculars a small distance from your glasses without losing any of the image produced.6
How Much Do They Cost?
Between $40 and $400
For most binoculars for stargazing, you can expect to pay between $40-$400 and still get a high-quality product. That being said, the price of astronomy binoculars varies widely based on a number of factors. Binoculars at the lower end of that price range are made with low-cost materials and components to keep the price down. By comparison, more expensive binoculars are made with high-quality materials, precision optics, and all-metal components. Very high-end astronomy binoculars can cost $3,000 or more. Models of this price are built to exacting standards using the latest technologies and the highest quality materials and components. As a general hobbyist, it’s not necessary to spend top dollar on binoculars. Mid-priced models should deliver all the functionality you need for hobbies such as astronomy.
Our Methodology: Why Trust Moon and Back
As an astronomy expert, I’ve spoken with many astronomers, birdwatchers, hunters, and other hobbyists about the best binoculars for stargazing on the market. Many of these products were chosen based on my professional experience as a binoculars expert combined with product feature considerations. I personally tested my top picks and other binoculars to find the best of the best based on magnification, aperture, field of view (FOV), exit pupil, weight, and eye relief. The other two criteria (price and lens coatings) were subjectively taken into account and generally used as a tie-breaker. For example, if two binoculars scored almost the same, I might have chosen one product over another due to its price and quality of the lenses. My final four picks are ones I’d personally recommend to anyone in the market for binoculars. – Richard J. Bartlett
The Best Binoculars for Stargazing: Full Reviews
My top pick of the astronomy binoculars I looked at is the Celestron SkyMaster 20×80. As you’d expect from Celestron, one of the leading manufacturers of astronomical equipment, these are very well-constructed binoculars. Performance-wise, these binoculars passed almost every test with flying colors. Focusing was sharp, with stars appearing circular (and not distorted) when out of focus. Generally, the image quality was excellent, with the binoculars producing a view of the Pleiades star cluster rivaling any through a small telescope. In technical tests, the exit pupils appeared sharp and circular, with no visible clipping, and the aperture test yielded the full 80mm, so you’re certainly getting the full field of view.
You’ll also have no problem using these if you wear spectacles. With a generous 18mm eye relief, you can comfortably hold the binoculars that distance from your eyes and still be able to see the entire field of view. It’s also worth knowing that these are not the best binoculars for beginners. With a magnification of 20x, you’ll only be able to see roughly 3.7 degrees of sky at a time. If you’re unfamiliar with the sky, this can make finding and identifying targets a little tricky, as you’re looking at a much smaller area of the sky than you might otherwise be used to. Overall, although Celestron’s SkyMaster 20×80 binoculars may not be for beginners, they’re an excellent choice for serious skywatchers, especially if you’re looking for something with a little more kick than your average 10x50s. These binoculars provide views that rival a small telescope and, as such, are well worth every penny.
For more on the Celestron SkyMaster 20×80 Binoculars, check out our in-depth review.
- Stars appeared sharp and colorful
- Generous eye relief for spectacle wearers
- Smooth focusing mechanism
- Tripod mount provided
- BaK-4 prisms
- A tripod is required for any prolonged use
- Attached tripod mount cannot be removed
- Focus wheel and hinges are a little stiff
- Multi-coated lenses rather than fully multi-coated
If you’re looking for high-quality astronomy binoculars on a budget, check out the SkyGenius 10×50. These functional and reliable binoculars are a great choice for activities such as amateur astronomy, and they’re also useful for birdwatching, sightseeing, and hunting. They feature 10x magnification, a 50mm aperture, and multi-coated lenses.
Other key features of these wallet-friendly binoculars for stargazing include a 6.2-degree field of view, a diopter system that compensates for differences between your two eyes, and adjustable eye relief. The binoculars delivered good image quality, and focusing was sharp. Stars appeared sharp when focused, and the focusing mechanism was very smooth. Clocking in at just 1.8 pounds, the binoculars are also lightweight and comfortable to use.
For more on the SkyGenius 10×50 Binoculars, check out our in-depth review.
- Large field of view
- Sharp images and good color
- Very smooth focusing mechanism
- No markings to help set the interpupillary distance (IPD)
- Prisms are not as good quality as other binoculars
The Orion Scenix 7×50 are lightweight and portable astronomy binoculars that deliver sharp images on demand. They feature 7x magnification, a 50mm aperture, a wide 7.1-degree field of view, and multi-coated lenses. These specifications ensure the binoculars are ideal for a wide range of activities such as amateur astronomy, birdwatching, and viewing live events.
The binoculars performed well in our tests, delivering excellent image quality with very little distortion at the edge of the field of view. They also proved to be good for stargazing, with stars appearing sharp in focus and only a little distorted when out of focus. Overall, these binoculars are a great everyday piece of kit and perform very well for the price.
For more on the Orion Scenix 7×50 Binoculars, check out our in-depth review.
- Lightweight and portable
- Focus can be adjusted with one finger
- Sharp image quality
- Interpupillary distance (IPD) is a little limited
- Diopter adjustment feels slightly stiff
- Generic instruction sheet
Designed to produce clear, bright views, the Opticron Adventurer II Binoculars are an excellent choice if you’re looking for 10×50 binoculars.
The Opticron Adventurer II 10×50 Binoculars are roof prism binoculars that are lightweight and feature fully multi-coated lenses, BaK-4 prisms, and a close focus of 9.8 feet (3 meters), making them suitable for amateur astronomers and outdoor enthusiasts alike. They come with a quality canvas carrying case with a thinly padded interior for added protection and a standard case strap for easy portability.
These binoculars are also waterproof, so you don’t need to worry about using them outdoors in rainy conditions. They’ve also been filled with dry nitrogen, which prevents moisture and condensation from forming on the inside. Weighing about half a pound less compared to most binoculars (which typically weigh about 2.25 pounds), you don’t need to mount them on a tripod to use them comfortably. In tests, the central focuser moves smoothly and is easy to adjust with one or two fingers. The eye relief is 17mm (the distance you can hold the eyepieces away from your eyes while still seeing the full field of view), which is helpful for users who wear glasses. In testing, there was a slight reduction in the field of view but it didn’t have a significant negative impact on the experience. With an IPD range of 57mm to 73mm, they’re suitable for most users, although they may not be the best choice for younger children.
For more on the Opticron Adventurer II 10×50 Binoculars, check out our in-depth review.
- BaK-4 prisms
- Sharp, clear images
- Some chromatic aberration
- Instructions are somewhat generic
- Tripod adapter socket cover difficult to remove/replace
If you’re looking for binoculars designed for viewing the cosmos, the Orion Astronomy 15×70 binoculars are an excellent choice. The robust and powerful binoculars feature large 70mm objective lenses and 15x magnification. They also come complete with high-quality BAK-4 porro prisms and fully multi-coated optics. These binoculars will allow you to see the craters of the moon and hundreds of deep-sky objects.
Other key features of these astronomy binoculars include a wide field of view and generous eye relief. A tripod mount is also provided for mounted viewing during extended stargazing sessions. The binoculars performed well during testing. Images were crisp and stars appeared circular when out of focus. Overall, these binoculars are ideal for astronomy and terrestrial daytime viewing.
For more on the Orion Astronomy 15×70 Binoculars, check out our in-depth review.
- Nice wide view
- Smooth and easy focus on both main focus and diopter
- Tripod mount provided
- Stiff hinge
- Large and heavy build
- Generic instructions
Frequently Asked Questions
Which is the best magnification for binoculars?
Can you see planets with binoculars?
What are the best binoculars for long-distance viewing?
Are expensive binoculars worth it?
Moon and Back uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
- Astro Binoculars Buying Guide. Telescopeadviser.com. Updated September 1, 2017. Accessed May 4, 2021.
- Macrobert A. Power and Aperture in Binoculars. Skyandtelescope.org. Published July 28, 2014. Accessed May 5, 2021.
- Porter M, Porter D. Birding Binoculars. Birdwatching.com. Accessed May 4, 2021.
- Cook WJ. Testing Stargazing Binoculars. Skyandtelescope.org. Published July 28, 2006. Accessed May 4, 2021.
- Seronik G. Understanding Binocular Exit Pupils. GarySeronik.com. Published April 18, 2009. Accessed May 5, 2021.
- Porter M, Porter D. Binoculars: Eye Relief. Birdwatching.com. Accessed May 5, 2021.
- Bakich ME. The deep sky. Astronomy.com. Published March 15, 2010. Accessed May 5, 2021.