Mythology
The great hunter of Greek mythology, son of Poseidon. He boasted he could kill any creature on Earth, so Gaia sent a scorpion to slay him. Orion and Scorpius were placed on opposite sides of the sky.
Observing Highlights
One of the most spectacular constellations. Contains the Great Orion Nebula (M42/M43), Betelgeuse (red supergiant), Rigel (blue supergiant), the Horsehead Nebula, the Flame Nebula, and Mintaka-Alnilam-Alnitak forming the famous Belt.
Main Stars
20
Main Stars
20
0.12 mag
9.5″
B: 6.8
B8Ia
0.50 mag
0.0 - 1.6
SRC
M4Ib
1.64 mag
178.0″
B: 13.1
B2III
1.70 mag
179.5″
B: 11.3
B0Ib
2.05 mag
2.5″
B: 3.7
O9.7Ib
2.06 mag
B0II
2.23 mag
2.2 - 2.32
EA
O9III
2.77 mag
11.2″
B: 7.7
O9.5III
3.19 mag
72.7″
B: 11.3
F6IV-V
HIP 25281; Eta Ori; 28 Ori
3.36 mag
1.8″
B: 4.9
B1 V +B2.
3.54 mag
4.1″
B: 5.5
O8III((f))
HIP 24674; Tau Ori; 20 Ori
3.60 mag
33.3″
B: 11.0
B6IV
3.69 mag
B2III
3.72 mag
B1.5IV
HIP 26549; Sigma Ori; 48 Ori
3.81 mag
0.3″
B: 5.3
O9.5V
HIP 22957; 9 Ori
4.07 mag
41.7″
B: 11.3
K2-IIIFe-1
4.09 mag
K0IIIbFe-2
HIP 28614; Mu Ori; 61 Ori
4.12 mag
0.1″
B: 6.3
A2V
HIP 25247; 29 Ori
4.14 mag
G8IIIFe-0.5
HIP 25813; 32 Ori
4.20 mag
1.3″
B: 5.8
B5V
Double Stars
15
Double Stars
15
5.73 mag
29.1″
B: 6.7
A3Vn
3.54 mag
4.1″
B: 5.5
O8III((f))
5.08 mag
52.3″
B: 6.2
O9.5Vp
4.78 mag
35.3″
B: 5.5
B0.5V
6.24 mag
14.4″
B: 7.7
B8V
HIP 25737; 31 Ori
4.71 mag
12.7″
B: 9.7
K5III
2.23 mag
2.2 - 2.32
EA
O9III
6.66 mag
21.2″
B: 7.0
B9Vn
0.50 mag
0.0 - 1.6
SRC
M4Ib
HIP 24331; Rho Ori; 17 Ori
4.46 mag
6.9″
B: 8.5
K0.5III
0.12 mag
9.5″
B: 6.8
B8Ia
HIP 25142; 23 Ori
5.00 mag
32.0″
B: 6.8
B1V
2.77 mag
11.2″
B: 7.7
O9.5III
2.05 mag
2.5″
B: 3.7
O9.7Ib
5.90 mag
6.2″
B: 8.1
B8III
Variable Stars
7
Variable Stars
7
2.23 mag
2.2 - 2.32
EA
O9III
HIP 26063
5.34 mag
B1V
HR 2063
5.40 mag
M6.5IIIe
HIP 27341
6.03 mag
A4V
0.50 mag
0.0 - 1.6
SRC
M4Ib
HIP 23680
6.17 mag
5.5 - 6.9
SRB
C6II
HIP 30564
6.24 mag
5.9 - 6.6
SRB
C5II
Deep Sky Objects
30
Deep Sky Objects
30
Open Cluster
(8)
Planetary Nebula
(1)
12.0 mag
0.3
Emission Nebula
(7)