Observing Deep Sky Objects

Deep sky objects are simply those objects outside the boundaries of our solar system. They include star clusters, planetary nebulae, diffuse nebulae, double stars, and other galaxies outside our own Milky Way. Because your spotting scope is not set up for serious astronomical observing, you will need to know where to look in the sky for these objects. The Celestron Sky Maps (#93722) will help you locate the brightest deep sky objects.

Once you start observing deep sky objects, there are a few things to remember. First, most deep sky objects have a large angular size. Therefore, low to moderate power is all you need to see them. Second, visually they are too faint to reveal any color that is common to photographs. Instead, they have a black and white appearance. And lastly, because of their low surface brightness, they should be observed from a dark sky location. Light pollution around large urban areas washes out most nebulae making them difficult, if not impossible, to see. An LPR (Light Pollution Reduction) Filter (#94126A) is available for use with 1 1 /4” eyepieces to allow urban use of the 102mm Wide View for looking at nebulae.

Photographing the Moon

After looking at the night sky for awhile you may want to try photographing it. If you do, start with a nice, bright object like the Moon. To photograph the Moon:

1.Attach your spotting scope to a stable platform like the Celestron Photographic Tripod (#93596).

2.Load your camera with film that has a moderate-to-fast speed (i.e., high ISO rating). Faster

films are more desirable when the Moon is a crescent. When the Moon is full, and at its brightest, slower films are more desirable. If photographing during the full phase, use a yellow filter to reduce the light intensity and to increase contrast.

3.Center the Moon in the field of your spotting scope.

4.Set the shutter speed to the appropriate setting (see below).

5.Trip the shutter using a cable release so as not to shake the camera and spotting scope.

Lunar Phase	ISO 50	ISO	ISO	ISO 400
		100	200
Crescent	1/8	1/15	1/60	1/125
Quarter	1/30	1/125	1/250	1/500
Full	1/125	1/500	1/1000	1/2000

The exposure times listed here should be used as a starting point. Always make exposures that are longer and shorter than the recommended time. Also, try bracketing your exposures, taking a few photos at each shutter speed. This will ensure that you will get a good photo. Keep accurate records of your exposures. This information will be useful if you want to repeat your results or if you want to submit some of your photos to various magazines for possible publication!

52270, 52260 specifications

Celestron, a leading manufacturer in the field of telescopes and astronomy equipment, has consistently delivered top-notch products tailored for both amateur enthusiasts and seasoned astronomers. Among its impressive lineup are the Celestron 52260 and Celestron 52270 models, known for their exceptional performance and user-friendly features.

The Celestron 52260, commonly referred to as the Astromaster 70AZ telescope, is an ideal choice for beginners. It features a 70mm aperture that provides bright and clear images of celestial objects, making it perfect for viewing the moon, planets, star clusters, and nebulae. The telescope's simple, lightweight design ensures easy portability and quick setup, allowing users to take it virtually anywhere. It comes with a StarPointer finderscope that assists in locating objects in the night sky with ease.

The Celestron 52270, also known as the Astromaster 90AZ telescope, boasts a 90mm aperture, which offers even clearer and more detailed views of distant astronomical wonders. This model enhances the viewing experience with its superior light-gathering capabilities, delivering sharper images. Like its counterpart, the 52270 features an adjustable aluminum tripod, providing a stable platform for observations.

Both telescopes incorporate Celestron's premium optics, including fully coated glass optics that maximize light transmission and reduce glare. Furthermore, they are designed with an easy-to-use Altazimuth mount, facilitating smooth movement in both horizontal and vertical directions. This feature enables users to track celestial objects with precision, making the observing experience enjoyable and hassle-free.

Another notable characteristic of both models is their adaptability; the telescopes are compatible with various 1.25" eyepieces, allowing users to enhance their viewing options and customize their observations. Additionally, they are equipped with the Celestron's innovative SkyX software, which provides a comprehensive database of celestial objects, aiding both novice and advanced stargazers in their explorations.

In summary, the Celestron 52260 and 52270 telescopes are exemplary choices for anyone looking to delve into the universe of astronomy. With their robust features, user-friendly designs, and exceptional optical performance, these models serve as excellent entry points for individuals eager to explore the wonders of the night sky. Whether for casual stargazing or deeper astronomical pursuits, Celestron's commitment to quality and innovation makes their telescopes a valuable asset for any skywatcher.