Category
page 1Orion–Cygnus Arm

Pleiades
The Pleiades ( ), also known as Seven Sisters and Messier 45 (M45), is an asterism of an open star cluster containing young B-type stars in the northwest of the constellation Taurus. At a distance of about 444 light-years, it is among the nearest star clusters to Earth and the nearest Messier object to Earth, being the most obvious star cluster to the naked eye in the night sky. It contains the reflection nebulae NGC 1432, an HII region, and NGC 1435, known as the Merope Nebula. Around 2330 BC the Pleiades marked the vernal point. Due to the brightness of its stars, the Pleiades is viewable fr
Orion Nebula
diffuse nebula
Ring Nebula
planetary nebula in the constellation Lyra
Messier 78
Reflection nebula in the constellation Orion
Butterfly Cluster
Open cluster in the constellation Scorpius
Messier 7
Open cluster
Dumbbell Nebula
Planetary nebula
Messier 43
Nebula and H II region in the constellation Orion
Beehive Cluster
open cluster
Messier 39
open cluster in the constellation Cygnus
Messier 67
Open cluster
Messier 23
Open cluster
Messier 34
Open cluster in the constellation Perseus
Messier 50
Open cluster
Messier 41
Open cluster
Little Dumbbell Nebula
planetary nebula in the constellation Perseus
Messier 73
Asterism of four stars in the constellation Aquarius
Messier 93
open cluster
Messier 47
Open cluster in the constellation Puppis
Messier 46
open cluster
Messier 35
Open cluster
Messier 48
Open cluster in the constellation Hydra
Messier 29
open cluster in the constellation Cygnus
Orion Arm
minor spiral arm of the Milky Way galaxy; contains the Solar System
Messier 40
Optical double star in the constellation Ursa Major.
Messier 25
Open cluster

Ross 128
small star in the equatorial zodiac constellation of Virgo
NGC 1981
open cluster in Orion
NGC 1980
Open cluster in the constellation Orion
NGC 6910
open cluster

Loop I Bubble
cavity in the interstellar medium (ISM) of the Orion Arm of the
WDJ0914+1914
star in the constellation Cancer