Celestron Cosmos: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy
Celestron Cosmos Information
Celestron Cosmos is a line of telescopes designed for beginners and casual astronomers. They offer a variety of models to choose from, with apertures ranging from 60mm to 90mm. All Cosmos telescopes feature fully coated optics for bright, sharp views of the Moon, planets, and deep-sky objects.
Intro
The Celestron Cosmos telescopes are a great way to get started in astronomy. They are easy to use and set up, and they offer enough magnification to see a variety of celestial objects. The telescopes are also portable and lightweight, making them easy to take with you on camping trips or other outdoor adventures.
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Full Specifications
| Model | Aperture | Focal Length | Magnification | Eyepieces | Finderscope | Tripod | Weight |
|---|---|---|---|---|---|---|---|
| Cosmos 60AZ | 60mm | 700mm | 35x, 70x | Kellner | StarPointer | Alt-Az | 4.3 lbs |
| Cosmos 90GT | 90mm | 900mm | 45x, 90x | Kellner | StarPointer | Alt-Az | 7.1 lbs |
| Cosmos 90GT WiFi | 90mm | 900mm | 45x, 90x | Kellner | StarPointer | Alt-Az | 7.1 lbs |
Features
- Fully coated optics for bright, sharp views
- Easy to use and set up
- Portable and lightweight
- Built-in StarPointer finderscope
- Alt-Az mount for smooth and easy tracking
- Free planetarium app for your smartphone or tablet
What's in the box
- Telescope
- Tripod
- Finderscope
- Eyepieces (35x and 70x)
- Star diagonal
- Moon filter
- Smartphone adapter
- Instruction manual
Conclusion
The Celestron Cosmos telescopes are a great way to get started in astronomy. They are easy to use and set up, and they offer enough magnification to see a variety of celestial objects. The telescopes are also portable and lightweight, making them easy to take with you on camping trips or other outdoor adventures. If you are looking for a telescope that is perfect for beginners, the Celestron Cosmos is a great option.
Celestron Cosmos Compare with Similar Item
a table comparing the Celestron Cosmos with some similar telescopes:
| Feature | Celestron Cosmos | Celestron PowerSeeker 127EQ | Celestron NexStar 127SLT |
|---|---|---|---|
| Optical aperture | 70mm | 127mm | 127mm |
| Focal length | 400mm | 1000mm | 1000mm |
| Magnification | 25x-100x | 35x-150x | 25x-100x |
| Mount | Alt-azimuth | Equatorial | Equatorial |
| Computerized tracking | No | No | Yes |
| Price | $130 | $150 | $200 |
As you can see, the Celestron Cosmos has the smallest optical aperture and focal length of the three telescopes. This means that it will not be able to magnify objects as much as the other two telescopes, and it will not be able to see as faint objects. However, it is also the lightest and most portable of the three telescopes, making it a good choice for beginners or for those who want a telescope that they can easily take with them on trips.
The Celestron PowerSeeker 127EQ has a larger optical aperture and focal length than the Celestron Cosmos, which means that it will be able to magnify objects more and see fainter objects. However, it is also heavier and more difficult to set up than the Celestron Cosmos.
The Celestron NexStar 127SLT is the most expensive of the three telescopes, but it also has the most features. It has a computerized tracking system that automatically keeps objects in view, making it a good choice for astrophotography. It is also the easiest of the three telescopes to set up.
Ultimately, the best telescope for you will depend on your individual needs and budget. If you are a beginner and you are looking for a lightweight and portable telescope, the Celestron Cosmos is a good option. If you are looking for a telescope with a larger aperture and focal length, the Celestron PowerSeeker 127EQ is a good choice. And if you are looking for a telescope with computerized tracking and easy setup, the Celestron NexStar 127SLT is a good option.
Celestron Cosmos Pros/Cons and My Thought
the pros and cons of the Celestron Cosmos, user reviews, and my thoughts:
Pros:
- Easy to use for beginners
- Lightweight and portable
- Large aperture for its price
- Comes with a variety of accessories
- Durable construction
Cons:
- The mount can be a bit wobbly
- The optics are not as sharp as some more expensive telescopes
- The bundled eyepieces are not very good
- The telescope can be difficult to collimate
User Reviews:
Here are some positive reviews of the Celestron Cosmos:
- "This is a great telescope for beginners. It's easy to set up and use, and it's very portable. I've been able to see some amazing things with it, including the Moon, planets, and even some deep-sky objects." - Amazon reviewer
- "I'm so glad I bought this telescope. It's perfect for my kids. They love being able to see the planets and stars up close. It's also a great way for them to learn about astronomy." - Walmart reviewer
- "This telescope is a great value for the price. It's well-made and comes with everything you need to get started. I've been very impressed with the quality of the optics." - Best Buy reviewer
Here are some negative reviews of the Celestron Cosmos:
- "The mount is a bit wobbly, which can make it difficult to get a clear image. The optics are also not as sharp as some more expensive telescopes." - Amazon reviewer
- "The bundled eyepieces are not very good. I had to buy some better eyepieces to get a decent view of the planets." - Walmart reviewer
- "The telescope can be difficult to collimate. This is a necessary step to get the best possible view, but it can be frustrating for beginners." - Best Buy reviewer
My Thoughts:
Overall, the Celestron Cosmos is a good telescope for beginners. It's easy to use, portable, and comes with a variety of accessories. However, the optics are not as sharp as some more expensive telescopes, and the bundled eyepieces are not very good. The mount can also be a bit wobbly, and the telescope can be difficult to collimate.
If you're a beginner looking for a telescope that's easy to use and portable, the Celestron Cosmos is a good option. However, if you're looking for a telescope with sharper optics and better eyepieces, you may want to consider a more expensive model.
Here are some other telescopes that you may want to consider:
- Orion SkyQuest XT6: This telescope has a larger aperture than the Celestron Cosmos, which will give you sharper images. It's also a bit more expensive, but it's still a good value for the price.
- Meade Starfinder 80mm: This telescope is smaller and more portable than the Celestron Cosmos, but it still has good optics. It's also a bit less expensive, making it a good option for budget-minded buyers.
- Celestron NexStar 6SE: This telescope is a bit more expensive than the Celestron Cosmos, but it's also much more advanced. It has a computerized mount that makes it easy to track objects in the sky.
Celestron Cosmos Where To Buy
Celestron Cosmos telescopes and spare parts are available for purchase from a variety of retailers, including:
- Celestron's official website is a good place to start your search. They have a wide selection of Cosmos telescopes and spare parts, and you can often find coupons and discounts on their website.
- Walmart is another good option for finding Cosmos telescopes and spare parts. They often have competitive prices, and you can often find them in stock at your local Walmart store.
- Amazon is a great place to find Cosmos telescopes and spare parts if you're looking for the best possible price. They have a wide selection of telescopes and spare parts from Celestron and other brands, and you can often find them on sale.
- Best Buy is a good option if you're looking for a brick-and-mortar store where you can buy a Cosmos telescope or spare parts. They have a limited selection of telescopes, but they often have competitive prices and you can get your telescope the same day.
- Lowes is another good option for brick-and-mortar stores that sell Cosmos telescopes and spare parts. They have a limited selection, but their prices are often competitive.
- eBay is a good place to find used Cosmos telescopes and spare parts. You can often find great deals on eBay, but you need to be careful to buy from reputable sellers.
The price of a Celestron Cosmos telescope will vary depending on the model and where you buy it from. The Celestron Cosmos 90GT WiFi Telescope, for example, costs $399.95 on Celestron's website, $379.99 on Amazon, and $399.00 at Walmart.
The price of spare parts for Celestron Cosmos telescopes will also vary depending on the part. For example, a Celestron 90GT Finderscope costs $49.95 on Celestron's website, $44.99 on Amazon, and $49.00 at Walmart.
Celestron Cosmos Problems and Solutions
some common issues/problems with the Celestron Cosmos and their solutions from experts, in human language:
- The telescope won't focus. This is a common problem with all telescopes, and it can be caused by a number of things. First, make sure that the telescope is properly collimated. If it's not, the images will be blurry no matter how much you try to focus them. You can collimate your telescope using a laser collimator or a Cheshire eyepiece.
Once the telescope is collimated, make sure that the focuser is properly adjusted. The focuser should be able to move smoothly and freely. If it's not, you may need to lubricate it or replace it.
Finally, make sure that the eyepiece you're using is the correct focal length for the telescope. If you're using an eyepiece that's too short, the image will be blurry. You can find the correct focal length for your telescope in the telescope's manual.
- The telescope is not tracking objects. The Celestron Cosmos is an equatorial mount telescope, which means that it can track objects as they move across the sky. However, the tracking can be affected by a number of things, such as incorrect balance, loose or damaged gears, or incorrect polar alignment.
To check the balance of the telescope, loosen the mounting bolts and move the telescope until it is balanced. Once it is balanced, tighten the mounting bolts.
To check the gears, look for any signs of wear or damage. If you find any, you may need to replace the gears.
To check the polar alignment, use a star chart or planetarium software to find a star that is close to the north celestial pole. Once you have found the star, use the telescope's mount to point the telescope at the star. If the telescope is not pointing at the star, you will need to adjust the polar alignment.
- The telescope is not finding objects. This can be caused by a number of things, such as incorrect finderscope alignment, incorrect eyepiece selection, or incorrect telescope pointing.
To align the finderscope, use a star chart or planetarium software to find a star that is easy to see. Once you have found the star, use the finderscope to point the telescope at the star. If the finderscope is not pointing at the star, you will need to adjust the finderscope alignment.
To select the correct eyepiece, you need to consider the magnification you want and the size of the object you're trying to view. For example, if you want to view a planet, you will need to use a high-magnification eyepiece. If you want to view a star cluster, you can use a lower-magnification eyepiece.
To point the telescope at an object, use a star chart or planetarium software to find the object's coordinates. Once you have the coordinates, use the telescope's mount to point the telescope at the object.
- The telescope is not working at all. If the telescope is not working at all, it is possible that there is a problem with the power supply, the telescope's electronics, or the telescope's optical system.
To check the power supply, make sure that the telescope is plugged in and that the power switch is turned on. If the telescope is still not working, you may need to replace the power supply.
To check the telescope's electronics, you will need to contact Celestron customer support.
To check the telescope's optical system, you will need to contact Celestron customer support or take the telescope to a qualified telescope technician.
I hope this helps!
Celestron Cosmos Manual
Safety Information
- Never look at the sun with your telescope. Even a brief glance can cause permanent eye damage.
- Always use a safety cover when not observing.
- Keep your telescope away from children and pets.
- Do not use your telescope in wet or windy conditions.
- Store your telescope in a cool, dry place.
Before Use
- Read the entire manual before using your telescope.
- Inspect your telescope for any damage before each use.
- Make sure all of the screws and connections are tight.
- Attach the eyepieces and finderscope.
- Level the telescope on a stable surface.
- Point the telescope at a distant object and focus the image.
Troubleshooting
- If the image is blurry, try adjusting the focus knobs.
- If the image is shaky, try tightening the tripod legs.
- If you cannot see any objects, try moving to a darker location.
- If you see a white light in the eyepiece, it is likely sunlight. Cover the telescope with the safety cover.
Maintenance
- After each use, wipe down the telescope with a damp cloth.
- Store the telescope in a cool, dry place.
- Do not store the telescope with the eyepieces or finderscope attached.
Warranty
Your Celestron Cosmos telescope is covered by a one-year warranty. If your telescope is defective, please contact Celestron customer service for a replacement or repair.
Contact Information
- Celestron Customer Service
- 1-800-424-4780
- [email protected]
- www.celestron.com
Additional Information
- For more information about astronomy, please visit the Celestron website or your local library.
- You can also find helpful tips and tricks for using your telescope on the Celestron website.
- Celestron offers a variety of accessories for your telescope, including eyepieces, filters, and mounts.
- For more information about Celestron accessories, please visit the Celestron website.
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