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Cristian Monea
22 Apr 2009 21:10

Catalog de obiecte ceresti
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Un catalog structurat de obiecte cere&#537;ti. Este u&#537;or de citit &#537;i bine structurat:

"BY RA - All objects, sorted by increasing right ascension, to assist the user in indentifying those objects that are "up" and available for observation on any given night.

BY TYPE - A cross-reference of the same set of objects, but grouped by object type:
Ephemeris Stars - moderately bright stars near +40° declination, useful for stellar
initialization.
Bright Stars - Alternate stellar initialization objects in the event that an appropriate Ephemeris Star cannot be found. Also useful to demonstrate how a bright star appears telescopically.
Red and Double Stars - Interesting, and sometimes challenging, examples of single, binary, and multiple star systems, sometimes with striking color combinations.
Open Clusters - Also known as "galactic clusters", the product of relatively recent starbirth regions. Tend to be loosely organized and dominated by blue stars.
Globular Clusters - Ancient, tightly-bound star systems which tend to group around the nucleus of the Milky Way. Contain thousands of component stars.
Planetary Nebulae - The "puffed-off" outer shells of a dying, Sun-like star. Named by Hershel, for their (sometimes) telescopic resemblance to Uranus, which he discovered.
Diffuse Nebula - Glowing gas clouds, primarily due to hydrogen-alpha emission. Starbirth occurs in these regions, ultimately resulting in a new open cluster.
Cataclysmic - Exotic, explosive, highly-energetic sources.
Galaxies - "Island universes" of stars lying outside our own Milky Way Galaxy.
MESSIER - A separate listing of this venerable and historical catalog.
M&M - A separate listing of Mullaney and McCall's catalog of celestial showpieces."

&#536;i în plus, catalogul Herschel &#537;i Messier (în format Excel).

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marius78
22 Apr 2009 22:30


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Frumuoasa postare .Datele astea sunt valabile tot timpul?

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marius78
22 Apr 2009 22:33


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Ne putem ghida dupa ele ,tot timpu anului ?.Sau se mai schimba ceva din cand in cand .Ma gendesc sa le descarc in calc ,pote imi sunt utile .

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Cristian Monea
23 Apr 2009 17:07


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Sincer nu &#537;tiu dacă sunt valabile tot timpul anului, dar am văzut, de exemplu, că la nebuloase există o separare în func&#539;ie de anotimp, la fel &#537;i la catalogul Messier în format Excel.

Ma gendesc sa le descarc in calc ,pote imi sunt utile .

Pentru asta le-am descărcat pe forum - ca să beneficieze &#537;i al&#539;ii de ele. :D

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marius78
23 Apr 2009 19:04


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Ar fi interesant ,daca ai posta un tabel si cu modificarile .Cred ca exista pe undeva .

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Cristian Monea
24 Apr 2009 14:31


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Din nefericire, nu îmi mai amintesc de pe ce site am descărcat catalogul, că poate mai găseam acolo alte informa&#539;ii.

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octopus
24 Apr 2009 14:55


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Parca si asta ar fi bun:
http://www.messier.obspm.fr/xtra/12months/12months.html
