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Al Sumut

Alpha Pyxidis

Proper NameAl Sumut
Bayer DesignationAlpha Pyxidis
Flamsteed NumberNone
HR (BSC)3468
HD74575
ConstellationPyxis
Right Ascension8h 43m 36s
Declination-33° 11' 11"
Distance794 light years
243 parsecs
MagnitudeApparent: +3.69
Absolute: -3.24
Spectral ClassB1.5III blue giant
Optimum VisibilityFebruary
Relative Galactic Position of Al Sumut (Alpha Pyxidis)

The Galactic position and direction of Al Sumut (Alpha Pyxidis) relative to Earth's Sun. Note that, at this extreme scale, the two stars are effectively in the same place.

With an apparent magnitude of +3.69, this is a relatively faint star to a naked-eye observer on Earth. Nonetheless, it is the brightest in the sparse constellation of Pyxis.

Image of Al Sumut (Alpha Pyxidis)

Irregularities in the structure of Al Sumut mean that its brightness changes over time. While it appears comparatively faint from Earth, this is due to its great distance of nearly eight hundred light years - in fact, it is a gigantic, powerful and brilliant star.

Imagery provided by Aladin sky atlas

HR Diagram
6 Cassiopeiae
41 Draconis
47 Cygni
75 Cygni
a Velorum
AU Microscopii
AX Microscopii
b Velorum
Chaophraya
DH Tauri
e Aquilae
Gakyid
Gliese 440
Gliese 687
HD 37131
HR 6842
IL Aquarii
k Hydrae
KELT-20
Kepler-102
Kepler-444
KR Muscae
La Superba
Mazaalai
Mekbuda
Miram
μ Cassiopeiae
ο1 Cygni
Petra
π Cephei
Pincoya
Polis
s Velorum A
TWA 5
w Carinae
x Carinae
Xi Boötis B
ZZ Ceti
15 Orionis
52 Orionis
Acubens
Adhafera
Alchiba
Alfirk
Alkaphrah
Alnilam
Antares
Arneb
Atria
Avior
Azmidi
Berehynia
Betelgeuse
BF Orionis
Capella
Cerberus
χ Centauri
χ Cygni
d Lupi
δ Muscae
Deneb
Diya
Dombay
EE Leonis
ε Indi
Erakis
η Carinae
f Velorum
FL Virginis
γ Pavonis
Gliese 205
Gliese 887
Groombridge 1618
Hatysa
HD 37130
Hind's Crimson Star
HO Librae
HR 1911
ι Leonis B
ι1 Scorpii
Kapteyn's Star
Koeia
Kruger 60 A
DO Cephei
Maru
Mebsuta
Mira
Mirfak
Mu Aquilae
Naos
Nashira
ν2 Canis Majoris
ν Cephei
ν Persei
ο Capricorni B
Orkaria
Polaris
Proxima Centauri
Ran
ρ Cassiopeiae
ρ Cygni
Rigel
α Centauri A
Ross 154
Ross 156
Ross 206
Sadr
Sargas
Shaomin
Sharjah
σ Orionis
Sirius B
Struve 2398 B
Suhail
Teegarden's Star
Tevel
Thabit
θ Circini
θ Hydrae
Tureis
U Sagittarii
Unurgunite
UV Ceti
V509 Cassiopeiae
V1099 Orionis
van Maanen's Star
Wezen
Wolf 359
Wolf 498
WX Ursae Majoris
ζ Arae
Al Sumut

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

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