For complete warranty details contact us at Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger. Beginner Level - Suited for a wide range of uses, these products are simple to operate and set up.
Some initial assembly may be required depending on the type of product. Optical instruments with this rating will have very good optical and mechanical quality. Great for families, young people, and folks who don't want to mess with equipment and complexity.
Beginning level telescopes will show you countless lunar craters, Saturn's rings and a myriad of star clusters and nebulae! Referring to the manual is recommended. Intermediate Level - These products offer higher performance and more advanced features than Level 1: Beginner models. They typically take a bit longer to learn and need some set-up or adjustments. But anyone with the slightest technical bent will have no problem getting familiar with these models.
Advanced Level - These products provide the best performance but may require more skill to master and appreciate. Optical instruments with this rating have exceptionally fine optics and mechanics. Some are easy to use but might be on the large or heavy side. Some are intended for specialized uses. These products will appeal to the more technically inclined. Referring to the manual is highly recommended. For telescopes, the optical diameter also known as aperture is the size of a telescope's main light-collecting lens or primary mirror, measured in millimeters or inches.
Telescopes with larger optical diameters collect more light, which leads to an increase in brightness and image resolution compared to smaller instruments. For binoculars, the optical diameter also known as objective lens diameter is the size of each of the front-facing objective lenses of a binocular measured in millimeters.
Binoculars with larger objective lenses collect more light, which increases image resolution and brightness. Binoculars with larger objective lenses are recommended for low light situations, and binoculars with at least 50mm or larger objective lenses are recommended for pleasing astronomical observations at night. Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available.
Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.
A per-item shipping charge in addition to the standard shipping and handling charge applies to this product due to its size and weight. This charge varies based on the shipping method. Delivery is available to Canada. Now an employee-owned company, we pride ourselves on an unswerving commitment to best quality products, value and unmatched customer care.
Orion offers telescopes for every level: Beginner , Intermediate , Advanced , and Expert. From our entry level beginner telescopes for amateur astronomers to our Dobsonian telescopes to our most advanced Cassegrain telescopes and accessories , you can find the best telescope for you.
Because we sell direct, we can offer you tremendous value at a great price. Not sure how to choose a telescope? Orion's Telescope Buyer's Guide is a great place to start. Orion binoculars are known for quality optics at a great price. We offer binoculars for every viewing interest, including astronomical binoculars , compact binoculars , waterproof binoculars , birding binoculars , and sport and hunting binoculars.
Orion's telescope and astrophotography accessories will enhance your telescope enjoyment without breaking the bank. Expand your viewing experience with accessories ranging from moon filters to power-boosting Barlow lenses to advanced computerized telescope mounts.
Capture breathtaking photos with our affordable astrophotography cameras. And when you're stargazing, Orion's telescope cases and covers , observing gear , red LED flashlights , astronomy books and star charts will make your observing sessions more convenient, comfortable and meaningful.
At Orion, we are committed to sharing our knowledge and passion for astronomy and astrophotography with the amateur astronomy community. Visit the Orion Community Center for in-depth information on telescopes , binoculars , and astrophotography. You can find astrophotography "how to" tips and share your best astronomy pictures here.
Cart 0. Order Status Help Community All Current Offers. Telescopes your whole family can use together. Suited for a wide range of uses, these products are simple to operate and set up. Not Available. More Shipping Information. This product is no longer available for purchase. A large aperture Classic Dobsonian reflector telescope at a very affordable price! Learn more. Item The Orion CorrecTension springs make setup easy and keep the telescope balanced.
Dial-in celestial details with the smooth and accurate 2" Crayford focuser. Explore the night sky with the included 25mm Sirius Plossl Eyepiece. Best for viewing. Best for imaging. User level User level. Optical design Optical design. Reflector telescopes use a pair of large and small mirrors to direct incoming light to the eyepiece. Refractor telescopes refract, or "bend" incoming light to a focus by means of an objective lens.
Cassegrain telescopes, such as Maksutov-Cassegrains, "fold" incoming light using two mirrors and a front "corrector" lens. Optical diameter Optical diameter. Focal length Focal length. The distance from the center of a curved mirror or lens at which parallel light rays converge to a single point. The focal length is an inherent specification of a mirror or lens and is one of the factors in determining resultant magnification for a telescope along with the focal length of the eyepiece being used.
Focal ratio Focal ratio. The focal ratio of an optical system is the ratio of a telescope's focal length to its aperture. Optics type Optics type. Newtonian reflectors will have either a spherical shaped mirror, which is less expensive to produce, or a higher quality parabola, which does not result in spherical aberration. Cassegrain telescopes routinely use spheres in addition to other lenses in the optical path to correct for residual spherical aberration.
Refractors use a series of lenses to provide a clear image. Designs range from a standard air-spaced doublet two lenses in a row to exotic designs such as oil-spaced triplets and 4-element multi group lenses. Glass material Glass material. Refractors use glass lenses to focus the light, and the glass material plays an important role in the quality of the resulting image.
Standard achromatic refractors routinely use Crown and Flint for the two elements, but more expensive apochromatic refractors can use ED extra low dispersion glass for one or more of the lenses. Reflector mirrors are made from glass with different levels of thermal expansion. Glass with Pyrex or other low thermal expansion material will not change shape as dramatically during the cool-down period, resulting in more stable images during this period.
Magnification with included eyepieces. Resolving power Resolving power. Note that the formula is independent of the telescope type or model, and is based only upon the aperture of the telescope. So the larger the telescope's aperture, the more it is capable of resolving.
This is important to keep in mind when observing astronomical objects which require high resolution for best viewing, such as planets and double stars. However, it is usually atmospheric seeing conditions not the telescope which limits the actual resolving power on a given night; rarely is resolution less than one arc-second possible from even the best viewing locations on Earth.
Lowest useful magnification Lowest useful magnification. Lowest useful magnification is the power at which the exit pupil becomes 7mm in diameter. Powers below this can still be reached with the telescope to give wider fields of view, but the image no longer becomes brighter at a lower power.
This is due to the fact that the exit pupil of the telescope the beam of light exiting the eyepiece is now larger than the average person's dark adapted pupil, and no more light can fit into the eye.
Highest useful magnification Highest useful magnification. The highest practical limit is different from the often used "highest theoretical magnification" specification. The "theoretical" limit generally is 50x the aperture of the scope in inches 2x the aperture in mm. So for example, an 80mm refractor is capable of x, and a 10" telescope is theoretically capable of x magnification.
But after approximately x, theory breaks down and real world problems take over. The atmosphere above us is constantly in motion, and it will distort the image seen through the telescope. This effect may not be noticeable at lower powers, but at higher powers the atmosphere will dramatically blur the object, reducing the quality of the image. On a good night a night where the air above is steady and the stars aren't twinkling , the practical upper limit of a large telescope is x, even thought the theoretical limit may be much higher.
This doesn't mean the scope will never be able to reach those higher "theoretical" powers - there will be that rare night where the atmosphere is perfectly still and the scope can be pushed past it's practical limit, but those nights will be few and far between. Highest theoretical magnification. Limiting stellar magnitude Limiting stellar magnitude.
The limiting stellar magnitude is a measure of the faintest star you can see through the telescope. Optical quality Optical quality. Finder scope. Secondary mirror obstruction. Secondary mirror obstruction by diameter. Secondary mirror obstruction by area. Mount type. Astro-imaging capability Astro-imaging capability. The astro-photographic capability of the telescope is based on the style, stability, and accuracy of the mount and tripod.
Telescopes on either very lightweight mounts or non tracking mounts such as Dobsonians are capable of only very short exposures such as lunar photographs. This may present some noticeable difference in adjustment quality for experienced users, but many newbies may not notice anything at all.
I guess the main gripe is that it comes with only one eyepiece, the 25 mm Orion Sirius Plossl 1. All other eyepieces and additional lenses must be purchased separately. For the price and quality of the telescope, you can justify spending more on additional eyepieces that you would want from the get-go and not stock ones that are usually mediocre in quality at best.
It comes with sky simulations and what celestial objects are visible at any point in time. It will also give you pointers in telescope control and how to plan and understand your observations. This is a telescope meant for celestial viewing. As a reflector telescope , images will be upside down. This model is not motorized or computerized for tracking and neither can it be upgraded for it.
It is a manual model only, but with steady hands and practice, you can track sky bodies as you observe. Many observers set this up on the ground as the eyepiece would be approximately 4 feet off the ground. You could also pull up a chair for comfortable viewing. Taller observers may want to place the base on top of a short table to help provide more height for comfortable viewing.
No, the telescope comes disassembled and must be assembled by you. It comes with all the necessary hardware to get it put together. Simply unattach the tube from the base and you have two pieces to move. The base has a carry handle to add to portability. The entire assembly weighs 41 lbs and stands approximately 5 feet tall.
Each piece tube and base weighs approximately 20 lbs. For the price, it offers more optical quality and ease of use than other types of telescopes , but it is lacking in the accessory department. Immediate purchases should include additional eyepieces, and if there is any repairs or replacements in the future to consider, it would be the base, if necessary. As a simple point and aim telescope, look forward to using it for many years to come.
The SkyQuest is a long-time favorite for many as a good, first-buy telescope. But, after 20 years in the market, is it still a good option? Optically and mechanically, does it need an upgrade? Contents show. Zooming in….
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