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Object
............................................ M 45 - " Pleiades "
Constellation .............................. Taurus
Distance + Ap. Magnitude....... 391 - 456 Light Years -
1.6
Date + Time ............................... 7 / 2/2011 -
20:00 UTC
Location .................................... "Nunki
Observatory" - Skiathos
Optics .........................................
Celestron
ED 80
Tools .......................................... Maxim
DL
Camera ..................................... Canon Eos
50D - Unmodified
Exposure Time....................... 12 X
600 sec at 400 iso
More Details ...........................
Environment Temperature : ---- Camera Temperature ----
Mount ....................................... Paramount
ME
Guiding .................................... Unguided
Processing Details ................ Photoshop ,
Maxim , CCDsoft
Notes ........................................ Weather:
Weather:8/10 - Transparence: 4/6 - Humidity : 70 %
Target details .........................
In
astronomy, the Pleiades, or Seven Sisters (Messier
object 45), is an
open star cluster containing middle-aged hot
B-type stars located in the constellation of
Taurus. It is among the nearest
star clusters to Earth and is the cluster most obvious to the
naked eye in the
night sky. Pleiades has several
meanings in different cultures and traditions.
The cluster is dominated by hot
blue and extremely luminous
stars that have formed within the last
100 million years. Dust
that forms a faint
reflection nebulosity around the brightest stars was thought at
first to be left over from the formation of the cluster (hence the
alternate name Maia Nebula after the star
Maia), but is now known to be an unrelated dust cloud in the
interstellar medium that
the stars are currently passing through. Astronomers estimate that
the cluster will survive for about another
250 million years,
after which it will disperse due to gravitational interactions with
its galactic neighborhood.
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