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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
π Cephei
Petra
ζ Arae
Pincoya
75 Cygni
Polis
Nashira
a Velorum
ο1 Cygni
Adhafera
Absolutno
V2306 Ophiuchi
TZ Arietis
θ Hydrae
s Velorum A
41 Draconis
Struve 2398 B
w Carinae
Xi Boötis B
x Carinae
Sharjah
Gliese 687
Bosona
Gakyid
Berehynia
b Velorum
Guniibuu
GX Andromedae
HD 37131
Nosaxa
Diya
Dombay
Chaophraya
e Aquilae
Cerberus
Ebla
Felixvarela
FL Virginis
ε Indi
Erakis
Kapteyn's Star
Koeia
LV Draconis
Kruger 60 A
La Superba
DO Cephei
Miram
AX Microscopii
AU Microscopii
HR 5546
Inquill
Mekbuda
Deneb
Mirfak
Wolf 359
Wolf 498
χ Cygni
Mira
ν2 Canis Majoris
Alfirk
δ Andromedae
Mebsuta
Alchiba
δ Caeli
δ Circini
Naos
Wezen
Ross 154
Almaaz
Ran
Gliese 536
β Pictoris
Suhail
Antares
Proxima Centauri
Sirius B
Sirius
σ Orionis
Hatysa
Arneb
β Doradus
Aspidiske
EE Leonis
Schedar
Rastaban
HO Librae
52 Orionis
Sadr
Atria
ρ Cygni
Avior
61 Cygni B
61 Cygni A
Rigel
α Centauri A
WX Ursae Majoris
Polaris
τ Ceti
15 Orionis
Acubens
Enif
Castor B
van Maanen's Star
Alnilam
Capella
Canopus
ε Reticuli
Achird
UV Ceti
14 Persei
η Carinae
Unurgunite
π5 Orionis
U Sagittarii
Tureis
ο Capricorni B
Azmidi
θ Circini
BF Orionis
Betelgeuse
Thabit
Teegarden's Star
ι1 Scorpii
γ Pavonis
Sargas
Saiph

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

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