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Saiph

Kappa Orionis, 53 Orionis

Proper NameSaiph
Bayer DesignationKappa Orionis
Flamsteed Number53 Orionis
HR (BSC)2004
HD38771
ConstellationOrion
Right Ascension5h 47m 45s
Declination-9° 40' 11"
Distance647 light years
198 parsecs
MagnitudeApparent: +2.1
Absolute: -4.7
Spectral ClassB0 Blue Supergiant
Optimum VisibilityDecember / January

Forming the easternmost 'foot' of Orion in the night sky, Saiph is an immense and hot blue star of the supergiant type. Like many of the stars of Orion, it is distant from the Solar System, lying more than 600 light years from Earth.

HR Diagram
Kruger 60 A
V2306 Ophiuchi
w Carinae
DO Cephei
Koit
Mekbuda
x Carinae
s Velorum A
La Superba
YZ Ceti
Struve 2398 A
ο1 Cygni
Struve 2398 B
Polis
Sharjah
Miram
Koeia
Pincoya
Poerava
Nashira
θ Hydrae
π Cephei
β Reticuli
Alkaphrah
Cerberus
AX Microscopii
b Velorum
41 Draconis
Acubens
Adhafera
a Velorum
Guniibuu
GX Andromedae
HD 37131
Nosaxa
Copernicus
Felixvarela
FL Virginis
Gakyid
ι1 Scorpii
Kapteyn's Star
HR 5546
Dombay
e Aquilae
Ebla
Erakis
ε Indi
Rastaban
WX Ursae Majoris
Zaniah
Schedar
δ Caeli
BF Orionis
Betelgeuse
Arneb
τ Ceti
Enif
Ran
Alchiba
Almaaz
α Telescopii
δ Pavonis
β Pictoris
Gliese 536
δ Circini
19 Cygni
δ Andromedae
Castor B
Antares
Polaris
χ Cygni
ν2 Canis Majoris
π5 Orionis
Suhail
Alnitak
Alnilam
ε Reticuli
Lalande 18115
Proxima Centauri
Tarazed
Capella
14 Persei
15 Orionis
Canopus
BZ Crucis
HR 7687
Tureis
Saiph
Azmidi
UV Ceti
γ Pavonis
Menkar
Alfirk
Mirfak
Aspidiske
θ Circini
ο Capricorni B
η Carinae
Unurgunite
Avior
Atria
Hatysa
U Sagittarii
Mira
Sadr
EE Leonis
HO Librae
σ Orionis
Wolf 359
Sham
Wezen
Sirius B
Sirius
W Virginis
Naos
Deneb
ρ Cygni
Achird
β Doradus
Ross 154
Rigel
van Maanen's Star
α Centauri A
61 Cygni A
61 Cygni B
Sargas
Mebsuta
Teegarden's Star
Wolf 498
Saiph

Hertzprung-Russell diagram plotting the temperature and luminosity of Saiph (marked by the red circle) relative to other stars.

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