The Pleiades, M45 - an Open Cluster of hot blue stars with faint nebulosity
caused by the stars light reflecting off of interstellar dust.

This is a 45 second exposure of the Pleiades taken by me. You just make
out hints of dusty nebulosity.
Pleiades - Maia Nebula Information:
NGC 1432
Other description: Reflection nebula faint.
Constellation: Tau
Dreyer description: Extremely faint, very large, diffused (Maia, in Pleiades).
RA: 03h 46m 10.3s Dec: +24°23'17"
RA: 03h 45m 48.0s Dec: +24°22'00" (Epoch 2000)
Size:30.0'
Hour angle: -00h 00m 46.5s Air mass: 1.01
From Electra:
Angular separation: 00°19'46"
Position angle: +39°42'