Astrophysics (index)

Orion

(well-known constellation in the northern hemisphere)

Orion is a well-known constellation in the northern hemisphere with heavily-studied stars and features, named after the hunter from Greek mythology, Orion.

Some prominent stars:

NameTypeRadiusApparent Magnitude (m)Distance
BetelgeuseM-Type Star (M) Supergiant887 Rsun.42643 ly
RigelB-Type Star (B) blue supergiant78 Rsun.18860 ly
BellatrixB2 III5.75 Rsun1.62250 ly
MintakaO-Type Star (O) bright giant16.5 Rsun2.231200 ly
AlnilamB-type blue supergiant42 Rsun1.682000 ly
AnlitakTriple star including an O-type blue supergiant20 Rsun1.771260 ly
SaiphB0.522 Rsun2.09650 ly

Among the other "stars" is the Orion Nebula, the middle of three stars descending from the belt, seen as Orion's sword.


(constellation)
http://en.wikipedia.org/wiki/Orion

Referenced by:
Bayer Designation
Betelgeuse
Dense Core
Herschel Orion Protostar Survey (HOPS)
HII Region (HII)
Nessie
Orion Disks
Rigel
Spitzer Space Telescope (SST)
Trapezium Cluster

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