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10 Best Astronomy Binoculars

From leading brands and best sellers available on the web.
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Our Top Picks

#1

Winner

Celestron 71018 SkyMaster 20x80mm Porro Prism Binoculars with Multi-Coated Lens, BaK-4 Prism Glass and Carry Case, Black

Rating
10.0
Chosen by1,148
Magnification
Objective Lens Diameter
Field of View
Magnification
At 20x magnification, a tripod is essential for steady viewing since handholding at this power makes it nearly impossible to focus and maintain a clear image.
Objective Lens Diameter
The large 80mm lenses deliver stunningly clear and bright images, cutting through haze to reveal star-filled skies unseen by the naked eye.
Field of View
The wide field of view makes scanning the night sky or landscapes easier, though higher magnifications reduce this advantage.
Weight and Size
Though bulky and over 2 kg, they are still backpackable and worth carrying for the exceptional image quality they provide.

The Celestron SkyMaster 20x80 binoculars are designed primarily for amateur astronomers and long-distance viewing, offering a strong 20x magnification and large 80mm objective lenses that gather plenty of light for clearer views of stars and distant objects. The BaK-4 prisms and multi-coated optics improve brightness and sharpness, which is especially helpful in low-light conditions like twilight or nighttime sky watching. The wide lenses also provide a good field of view, making it easier to scan the sky or landscapes.

Because of their size and weight (over 2 kg), these binoculars are best used with a tripod, which the built-in adapter easily accommodates. This helps reduce shakiness and makes viewing more comfortable during extended use. The binoculars come with a rubber-armored, water-resistant body, offering good durability for outdoor use, even in damp weather.

These binoculars are a solid choice for those serious about astronomy or distant viewing from a fixed spot and who don’t mind setting up a tripod. They deliver bright, detailed images in low light and are built to handle outdoor conditions. However, their weight and bulk may make them less suitable for handheld use or quick outings, so they may not be ideal for casual users seeking lightweight and easy-to-carry options.

Rating
10.0
Chosen by1,148
Magnification
Objective Lens Diameter
Field of View
Magnification
At 20x magnification, a tripod is essential for steady viewing since handholding at this power makes it nearly impossible to focus and maintain a clear image.
Objective Lens Diameter
The large 80mm lenses deliver stunningly clear and bright images, cutting through haze to reveal star-filled skies unseen by the naked eye.
Field of View
The wide field of view makes scanning the night sky or landscapes easier, though higher magnifications reduce this advantage.
Weight and Size
Though bulky and over 2 kg, they are still backpackable and worth carrying for the exceptional image quality they provide.
#2

Celestron 71332 Nature DX 8x42mm Binoculars with Multi-Coated Lens, BaK-4 Prism Glass and Carry Case, Green

Rating
9.1
Weight and Size
Weight and Size
A perfect choice for a young enthusiast; lightweight and easy to use, making it ideal for birdwatching and astronomy.

The Celestron 71332 Nature DX 8x42mm Binoculars are a solid choice for those interested in bird watching, nature observation, and mid-range outdoor adventures. With 8x magnification and 42mm objective lenses, they offer good image stability and brightness, which is essential for detailed viewing. The fully multi-coated lenses and phase-coated BaK-4 prisms are designed to enhance image quality, providing brighter images with more contrast and resolution. These features are particularly beneficial for astronomy as they help in capturing clearer views of celestial objects.

The binoculars also have a close focus of 6.5 feet, which is great for observing nearby objects in detail, although this might not be as relevant for stargazing, which typically involves distant objects. The waterproof and fog-proof rubber-armoured housing ensures durability and usability in various weather conditions, making them reliable for outdoor use. The twist-up eyecups are a thoughtful feature, catering to both eyeglass wearers and those without glasses. At 1.75 pounds, they are relatively lightweight but may still feel a bit heavy during extended use.

The binoculars come with a complete set of accessories, including a carrying case, lens caps, a neck strap, and a lens cloth, which add to their portability and convenience. However, the binoculars lack image stabilization, which could be a drawback for some users seeking extremely steady views without a tripod. These binoculars provide a good balance of performance, durability, and ease of use, making them a versatile option for both beginners and experienced users in various outdoor activities, including casual astronomy.

Rating
9.1
Weight and Size
Weight and Size
A perfect choice for a young enthusiast; lightweight and easy to use, making it ideal for birdwatching and astronomy.
#3

Celestron 71009 SkyMaster 15x70mm Porro Prism Binoculars with Multi-Coated Lens and BaK-4 Prism Glass, Black

Rating
8.8
Magnification
Field of View
Magnification
A tripod is essential for steady viewing at high magnifications, as the provided plastic mount can be unstable.
Field of View
With excellent clarity and a great field of view, the 15x70 Skymaster feels surprisingly lightweight given its power.

The Celestron 71009 SkyMaster binoculars offer impressive features for astronomy enthusiasts, particularly those interested in long-distance viewing. With a 15x magnification and large 70mm objective lenses, these binoculars are designed to provide bright and clear images even in low-light conditions, which is crucial for stargazing. The multi-coated lenses contribute to sharp and clear views by reducing glare and improving light transmission. The BaK-4 prism glass enhances image quality, ensuring crisp and detailed observations.

These binoculars are equipped with a large central focus knob, making it easy to achieve precise focus across the field of view, a feature that is beneficial for tracking celestial objects. The rubber exterior provides a firm grip, essential during prolonged observation sessions and for protection against the elements. While the binoculars are water-resistant, they are not fully waterproof, so caution is advised in wet conditions.

At 1.49 kg, they are relatively lightweight for their size, but still might require a steady hand or the use of the included tripod adapter for extended use. With dimensions of 22.1 x 10.9 x 27.9 cm, they are somewhat bulky, yet manageable for most users. The included accessories, such as the carrying case, tripod adapter, and lens cloth, add convenience for storage and travel.

However, the lack of image stabilization could be a drawback for some users, especially when using them for terrestrial viewing. These binoculars are best suited for adult users, as indicated by their design and weight, and are particularly recommended for both bird watching and celestial observations. The product's strong customer reviews and its ranking among binoculars suggest a high level of satisfaction among users, making them a solid choice for anyone looking to explore the night sky.

Rating
8.8
Magnification
Field of View
Magnification
A tripod is essential for steady viewing at high magnifications, as the provided plastic mount can be unstable.
Field of View
With excellent clarity and a great field of view, the 15x70 Skymaster feels surprisingly lightweight given its power.

Buying Guide for the Best Astronomy Binoculars

Choosing the right pair of astronomy binoculars can greatly enhance your stargazing experience. Unlike telescopes, binoculars are more portable, easier to use, and provide a wider field of view, making them ideal for beginners and casual observers. When selecting binoculars for astronomy, it's important to consider several key specifications that will affect your viewing experience. Understanding these specs will help you find a pair that matches your needs and preferences, whether you're observing the moon, planets, or deep-sky objects.
MagnificationMagnification refers to how much larger an object appears through the binoculars compared to the naked eye. In astronomy binoculars, this is usually represented as the first number in a pair, such as 10x50. Higher magnification allows you to see more detail, but it also narrows the field of view and can make the image shakier. For stargazing, a magnification of 7x to 10x is often ideal, as it provides a good balance between detail and stability. If you're interested in observing specific celestial objects in more detail, you might opt for higher magnification, but be prepared to use a tripod for stability.
Objective Lens DiameterThe objective lens diameter is the second number in the binoculars' specification, such as 10x50, and it indicates the size of the front lenses in millimeters. Larger lenses gather more light, which is crucial for viewing faint stars and deep-sky objects. For astronomy, an objective lens diameter of at least 50mm is recommended, as it allows for better light collection and brighter images. If you plan to observe in very dark skies, you might consider even larger lenses, but keep in mind that this will also make the binoculars heavier and less portable.
Field of ViewThe field of view is the width of the area you can see through the binoculars, usually measured in degrees or feet at a certain distance. A wider field of view makes it easier to locate and track celestial objects, especially if you're scanning the sky or observing moving objects like satellites. For astronomy, a field of view of 5 to 7 degrees is generally sufficient. If you're a beginner or enjoy observing large star clusters and constellations, a wider field of view can be particularly beneficial.
Exit PupilThe exit pupil is the diameter of the light beam that exits the eyepiece, calculated by dividing the objective lens diameter by the magnification. It determines how much light reaches your eyes and affects the brightness of the image. For astronomy, an exit pupil of 5mm to 7mm is ideal, as it matches the average dilation of the human eye in dark conditions, providing a bright and clear image. If you plan to use the binoculars in very dark environments, a larger exit pupil can be advantageous.
Weight and SizeThe weight and size of binoculars can significantly impact your comfort during extended viewing sessions. Heavier binoculars can be tiring to hold steady, especially for long periods, and may require a tripod for support. Consider how and where you'll be using the binoculars; if you plan to travel or hike to your stargazing spots, more compact and lightweight models might be preferable. However, larger binoculars often offer better performance in terms of light gathering and image quality, so it's important to find a balance that suits your needs.
CoatingsLens coatings are applied to binoculars to reduce reflections and increase light transmission, resulting in brighter and clearer images. There are different types of coatings, such as fully coated, multi-coated, and fully multi-coated, with fully multi-coated lenses offering the best performance. For astronomy, high-quality coatings are important because they enhance contrast and detail, making it easier to see faint celestial objects. If you're serious about stargazing, look for binoculars with fully multi-coated lenses to ensure the best possible viewing experience.