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Mosaic of NGC 4372, NGC 4833 and a dark cloud in the
Constellation Musca (Fly) |
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Description of object:
The "Dark Doodad" nebula is a
dark nebula near the globular cluster NGC 4372 in the constellation Fly
(Musca). "Dark Doodad" can best be translated into the German language as "Das
dunkel Ding". It is part of the large Musca molecular cloud, a region
consisting of dense gas and dust. At a distance of only 700 light-years, it is
one of the closest star-forming regions to the solar system. The apparent
length of the cloud is 3 degrees, which is roughly equivalent to 30
light-years.
The nebula was cataloged in 1977 by Aage Sandqvist, an
astronomer at the Stockholm Observatory. The name "Dark Doodad" comes from US
amateur astronomer and Sky&Telescope editor Dennis di Cicco. Sandqvist
created a list of 95 dark nebulae of the southern sky according to the ESO B
Atlas. In the SIMBAD database the nebula can also be found under the
designation Sandqvist +149.
Further information here. |
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NGC 4833 is a beautiful globular
cluster, classified as type VIII, with a
respectable apparent diameter of 14 arcminutes. Its distance to the solar
system is given as 22.000 light years and the age of the stars is estimated at
12.5 billion years.
NGC 4833 was discovered in 1751 by N. L. de Lacaille.
We have also taken a longer focal length image of NGC 4833.
You can see the image
here.
NGC 4372 - also a
globular cluster - is even larger with its apparent diameter of nearly 20
arcminutes. It is classified as type XII and has a
distance of nearly 19.000 light years to the solar system. NGC 4372 was
discovered by James Dunlop on April 30, 1826.
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by Franz Hofmann + Wolfgang Paech |