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DeepSkyPedia

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Welcome to
DeepSkyPedia

7,190 deep sky objects
from 205 catalogs.
You too can contribute!
Stars and star groups Nebulae Extragalactic Misc.
NGC 6093 Globular clusters M 42 Bright nebulae NGC 4414 Galaxies Ursa Major Constellations
NGC 6530 Open clusters M 24 Milky Way star clouds NGC 206 Galaxy parts Nuvola apps bookcase.png Catalogs (205)
M 73 Asterisms M 57 Planetary nebulae Arp 271 Galaxy groups Yellow star.png Best of ...
Albireo Multiple stars M 1 Supernova remnants Abell 1689 Galaxy clusters
Dark nebula in IC 2944 Dark nebulae White ball on black.png Quasars

Featured article

Messier 1 by Vedran Vrhovac.jpg

Messier 1 (Crab Nebula) is a supernova remnant in Taurus, near Zeta Tauri.

The nebula is non-stellar even in 5x24 finders. Central brightening and NE-SW elongation are visible with 60mm refractor. Recognising some shape might require 80-mm refractor and 65x.

Dark lanes dividing the nebula at 4 pieces were reportedly seen in 4.5" refractor at 80x. At 100x, more complex shape of nebula is revealed.

In 6" telescopes, in very good conditions, averted vision might help you see some more details like streaks emanating from the center of the diffusion or "feathery" edges.

8" at 170x and UHC can bring a lot more details to an experienced observer, most notably many spots around the edge of the "S". It can show subtle shade of blue.

Details observed in telescopes above 13" include mottling and ragged edges, very obvious irregular edge of the halo, filaments hints, spiral forms in the brighter parts, and a long bar in the center.

The Crab pulsar can be seen at very high power, and is reportedly splitted from nearby star at 330x. Obsevers with 13" and bigger telescopes, might see up to 7 stars involved with nebula....

more ...

What's new? (up to 2010.)

Yellow star.png Nov 18 2010: 6,000 articles about Deep sky objects (individual and in groups)!


Yellow star.png Nov 11: WikiProject:Infoboxes: STAR infoboxes created.


Yellow star.png Oct 7: 150 Deep Sky catalogs!


Yellow star.png Sep 29: 5,800 articles about Deep sky objects (individual and in groups)!


Yellow star.png Sep 24: Adding links...: Deep Sky Sketches by Mika Myllynen Yes.jpg


Yellow star.png September: New reports with 80 mm f/5 refractor and 8" dobson: Apr 17 2010., Jun 11 2010. and Jun 12 2010.


Yellow star.png June 30: DeepSkyPedia goes semantic!


Yellow star.png March 16: WikiProject:Messier: Description of appearance of all Messier objects in all kinds of telescopes

  • Article M 1 completed, with 36 references. Other recomended Messier articles are M 2, M 21, M 23, M 26, and M 28.

About DeepSkyPedia

DeepSkyPedia is a wiki project formed to help amateur astronomers in planning their observing sessions. Our goal is to make it possible to find all the information on particular object or groups of objects that you may find interesting while observing the sky. This information includes:

  • Sketch of an object, if available (no astrophotographs, just sketches)
  • Instructions and hints how to find the object
  • Appearance of an object in all kinds of optical instruments (or without them!)
  • Notes on nearby interesting object and other interesting facts
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How to contribute?

Magnifier.pngMore about this: How to contribute?

If You wish to join, please create account and start editing. If you have any experience with english wikipedia or any other wiki-project, you will have no problem finding your way around. If you need help, feel free to ask for it.

There are many ways to contribute. You may chose to:


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