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An astronomy telescope is a scope that allows individuals to see the planets and stars in greater clarity than they can see them with the naked eye. It is not only fun to do, but it can be an activity that both adults and children can share in interest and enjoyment. But, how do you know which telescope to buy? There are so many different kinds, sizes, magnifications, and prices that it can be very intimidating to purchase your first astronomy telescope without some information and education first. Here are some basic guidelines that you can follow when making your choice:

Reflective, Refractive, or Compound? These terms refer to the types of lenses and the way that the images are collected. A reflective scope uses mirrors to collect light and focus the images while a refractive uses curved glass lenses, and the compound astronomy telescope uses a combination of the two.

The cost of a reflective telescope makes it an attractive choice. Mirrors are inexpensive and easy to replace. It is also good for deep space viewing. The disadvantage is that it the mirrors sometimes do not provide the clarity of the refractive scope and sometimes the mirrors are jostled loose.

The refractive astronomy telescope is good for viewing planets and stars. It has very clear images and is easy to maintain. The cost is the main prohibitive factor to most beginning astronomers.

The compound telescope is also on the pricier end of the astronomy telescope family. It is used most often by serious astronomers and those who make a career of astronomy because of the clarity of images and the ability to see images in deep space. This is probably not the best choice for novice star-watchers.

One of the main considerations that you should think about when you are purchasing an astronomy telescope is the aperture. This is a measurement of the ability of the telescope to let light in and also the ability to focus that light. This is a more important measure of the telescope?s abilities than the magnification. The bigger the aperture, the better the telescope will be.

Another important consideration is mounting and portability. If you are going to be moving your astronomy telescope from place to place or taking hiking or camping, you will want a smaller scope with an easy to manage mount. The alt-azimuth mount allows the astronomy telescope to move up and down vertically and side to side horizontally from a central axis-this is perfect for beginners. A more advanced astronomy telescope user might like an equatorial mount which not only allows vertical and horizontal movement, but also sliding from side to side on a perpendicular mount to follow the movement of stars and planets.

As you research your choices you will find a lot more information which can be helpful in deciding the best telescope for you and your family.

1. Sky and Telescope - Observing - Celestial Objects - Nebulae

... planetary nebula is easy to find if you go about it the right way. Seeking Summer's Dark Nebulae ... ... A Collection of Bipolar Planetary Nebulae Butterflies of the Milky Way await scrutiny with ...
http://skyandtelescope.co ...rving/objects/nebulae

2. Space Today Online - Deep Space

... Nebulae Photo Gallery NASA Goddard NSSDC Planetary Nebulae Gallery Hubblesite Astronomy Picture of the Day NASA Goddard Stargazing: SkyView The Internet's Virtual Telescope NASA Virtual Observatory ...
http://www.spacetoday.org/DeepSpace.html

3. Moon Phase Prediction Software & eBook.

Learn about the Moon with this eBook and predict Moon phases and more with the associated astronomy/astrology software package.
http://thx1142.nsocat.hop.clickbank.net" target="_top

4. SkyView Non-Astronomer Page

... Dust, young stars, and galaxies Radio Pulsars and quasars Extreme UV White Dwarfs and planetary nebulae Optional Parameters: Change the values of these options to adjust the default parameters of ...
http://skyview.gsfc.nasa.gov/docs/easy.html

5. Kinematics of Planetary Nebulae in M51's Tidal Debris

Kinematics of Planetary Nebulae in M51's Tidal Debris Patrick Durrell (PSU), J. Christopher Mihos (CWRU), John Feldmeier (CWRU), George Jacoby (WIYN), and Robin Ciardullo (PSU) We report the results ...
http://burro.astr.cwru.edu/preprints/M51/M51.html

6. Galaxy Gallery Page III

CCD Images of Planetary Nebulae Courtesy of George Jacoby . Also Courtesy of Bruce Balick ... ... Planetary Nebulae represent the late stages of stellar evolution in which the outer layers of the ...
http://www.zebu.uoregon.edu/pn.html

7. Object: Supernova Remnants

... STARCHILD WEBSTARS ASK A SCIENTIST COSMIC DISTANCE SCALE APOD IMAGES & VIDEOS Supernova Remnants and Planetary Nebulae What's on This Page Images Spectra Light Curves Further SNR Resources and ...
http://heasarc.gsfc.nasa. ...bjects/snrs/snrs.html

8. Scientific Discoveries News

... Magnetic nebulae [Jan 2005 - astronomy] Planetary nebulae are the glowing clouds of dust and gas that remain once a Sun-like star has reached the end of its life and ejected its outer layers ...
http://www.sciencebase.co ...eries_scientific.html

9. Elk Creek Observatory Clear Sky Clock

... However, open clusters and planetary nebulae are quite observable in below average transparency. Large globulars and planets can be observed in poor transparency. A forecast color of white formally ...
http://www.cleardarksky.com/c/ElkCrkOBKSkey.html

10. AMNH Research | Astrophysics - Department of Astrophysics

... AMNH Research Spotlight - Planetary Nebulae Central Stars [Spotlight archive] Planetary Nebula Mz3 ... ... Today, we believe that planetary nebulae are the ejected outer layers of aging middle-weight stars ...
http://research.amnh.org/astrophysics/

11. Nebula Filters

... LP-2 Narrowband For heavily light polluted areas LP-3 Oxygen III For diffuse and planetary nebulae. LP-4 H-Beta For Horsehead, California nebula and other faint nebulae. Description Size US$ Part ...
http://www.thousandoaksoptical.com/nebula.html

12. NOAO Image Gallery: Planetary Nebulae

NOAO Image Gallery Planetary Nebulae NOAO is operated by the Association of Universities for ... ... Planetary nebulae form in the late stages of life of some stars when outer layers of gas that have ...
http://www.noao.edu/image ...lanetary_nebulae.html

13. Planetary Nebulae - Information and Observations

Galaxies Open Clusters Globular Clusters Diffuse Nebulae Planetary Nebulae Other Objects Sketches Comets Meteors Home Planetary Nebulae Planetary nebulae are shells of gas thrown out by some stars ...
http://www.nightskyinfo.com/planetary_nebulae/

14. Messier45.com - Guides & Articles

... com Deep Sky Browser Messier Gallery Herschel 400 Articles Photo Gallery Site History Home ´ Back Planetary Nebulae in Orion Name RA Dec Type PN Class Mag Size J 320 05 05 34.37 +10 42 21.7 PN 2(4 ...
http://www.messier45.com/guide/pn_in_orion/

15. Astronomy Now Store (WW)

... Planetary Nebulae - A stunning end for stars New faces on mars - April fools from the Red Planet Is the sun fading? Ghostly Comet Also FREE inside - 101 things you need to know about astronomy. Part ...
http://www.astronomynowst ...875d7ad582279ffe18b37

16. MIT MKI Astronomy Links

... reference data from NIST Planetarium Software Planetary Data System Microwave Subnode Planetary Nebulae Gallery Planetary Science Research Discoveries (PSRD) PM Survey Pulsar Catalogue PostgreSQL ...
http://space.mit.edu/astro_resources.html

17. Doug Snyder's Planetary Nebulae Web Site

Graphical Home Page Text Version Home Page Today Is: Have An Astronomical Night (and Day)! New ...
http://www.blackskies.org/

18. Publications

... on The Opacity of Spiral Disks Three dimensional iterative deprojection of asymmetrical planetary nebulae Michael Bremer (1) (1) IRAM, 300 Rue de la Piscine, F-38406 Saint Martin d'HËres, France ...
http://www.iram.fr/IRAMFR/PP/index.html

19. Astronomy For Kids - Nebulae - KidsAstronomy.com

... Planetary Nebulae Although this third type of nebulae is called a planetary nebulae, it actually has nothing to do with planets. A planetary nebulae is formed when a dying sun sized star begins to ...
http://www.kidsastronomy.com/nebulae.htm

20. http://ssc.spitzer.caltech.edu/geninfo/go/go3-list.txt

... U. The Shells of R Coronae Borealis Stars: Fossil Planetary Nebulae? Colbert, James Spitzer Science Center Solving the Mystery of the Lyman Alpha Blobs Dannerbauer, Helmut MPIA Revealing the Nature of ...

21. SRO - Planetary Nebulae

History Telescope News Weather Operations Schedule (Password needed) Projects Asteroids Astrometry Imaging Photometry Library Contacts Membership Visiting SRO Site Map Planetary Nebulae NGC 7662 "The ...
http://www.stony-ridge.org/planetaryneb.htm

22. physics - Planetary nebula

... com Categories: Planetary nebulae | Nebulae Planetary nebula NGC 6543, the Cat's Eye Nebula A planetary nebula is an astronomical object consisting of a glowing shell of gas formed by certain types ...
http://www.physicsdaily.c ...sics/Planetary_nebula

23. Planetary Nebulae Page 3

Planetary Nebulae A new Astronomy The Egg Nebula I love the images of the Egg Nebula that have come from the Hubble Space Telescope. Below is an image from May 12, 1997. The Ball-of-Light Particle ...
http://www.grandunificati ...xt/PlanetaryNeb3.html