M 45 - Pleiades |
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Object data of M45 |
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Object type: | open star cluster (I3r) with reflection nebula | |
Size: | 110' | |
Magnitude: | 1.6 mag | |
Constellation: | Tau | |
Distance: | 440 Ly | |
Notes: |
The Pleiades nebulae are blue-colored, which indicates that they are
reflection nebulae, reflecting the light of the bright stars situated near (or
within) them. Physically, the reflection nebula is probably part of the dust
in a molecular cloud, unrelated to the Pleiades cluster, which happens to
cross the cluster's way. It is not a remainder of the nebula from which the
cluster once formed. One can find many different catalogue entries for the reflection nebulae:
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Exposure data |
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Date: | 2009-11-19 | |
Location: | Nussbach / Austria (400m) | |
Telescope: | Rubinar300 (2.5" Maksutov Cassegrain f=300mm) | |
Camera: | EOS1000D (ISO400) | |
Mount: | Vixen GPDX | |
Exposure time: | 42x4m | |
Exposure time total: | 2h48m | |
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