Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Pyxis |
Right ascension | 08h 43m 35.53756s [1] |
Declination | −33° 11′ 10.9898″ [1] |
Apparent magnitude (V) | 3.67 [2] |
Characteristics | |
Spectral type | B1.5III [3] |
U−B color index | −0.84 [2] |
B−V color index | −0.19 [2] |
Variable type | Beta Cephei [4] |
Astrometry | |
Radial velocity (Rv) | +15.3 [5] km/s |
Proper motion (μ) |
RA: −14.27
[1]
mas/
yr Dec.: +10.43 [1] mas/ yr |
Parallax (π) | 3.71 ± 0.14 mas [1] |
Distance | 880 ± 30
ly (270 ± 10 pc) |
Absolute magnitude (MV) | −3.47 [6] |
Details | |
Mass | 10.7 [4] M☉ |
Radius | 6.3 ± 1.0 [7] R☉ |
Luminosity | 10,000 [4] L☉ |
Surface gravity (log g) | 3.63 [8] cgs |
Temperature | 24,300 [8] K |
Metallicity [Fe/H] | −0.18 [8] dex |
Rotational velocity (v sin i) | 11 [9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
Alpha Pyxidis, Latinised from α Pyxidis, is a giant star in the constellation Pyxis. It has a stellar classification of B1.5III and is a Beta Cephei variable. This star has more than ten times the mass of the Sun and is more than six times the Sun's radius. The surface temperature is 24,300 K and the star is about 10,000 times as luminous as the Sun. [3] [4] [8] Stars such as this with more than 10 solar masses are expected to end their life by exploding as a supernova. [11]
In Chinese, 天狗 (Tiān Gǒu), meaning Celestial Dog, refers to an asterism consisting of α Pyxidis, e Velorum, f Velorum, β Pyxidis, γ Pyxidis and δ Pyxidis. Consequently, α Pyxidis itself is known as 天狗五 (Tiān Gǒu wǔ, English: the Fifth Star of Celestial Dog). [12]
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: CS1 maint: postscript (
link)
Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Pyxis |
Right ascension | 08h 43m 35.53756s [1] |
Declination | −33° 11′ 10.9898″ [1] |
Apparent magnitude (V) | 3.67 [2] |
Characteristics | |
Spectral type | B1.5III [3] |
U−B color index | −0.84 [2] |
B−V color index | −0.19 [2] |
Variable type | Beta Cephei [4] |
Astrometry | |
Radial velocity (Rv) | +15.3 [5] km/s |
Proper motion (μ) |
RA: −14.27
[1]
mas/
yr Dec.: +10.43 [1] mas/ yr |
Parallax (π) | 3.71 ± 0.14 mas [1] |
Distance | 880 ± 30
ly (270 ± 10 pc) |
Absolute magnitude (MV) | −3.47 [6] |
Details | |
Mass | 10.7 [4] M☉ |
Radius | 6.3 ± 1.0 [7] R☉ |
Luminosity | 10,000 [4] L☉ |
Surface gravity (log g) | 3.63 [8] cgs |
Temperature | 24,300 [8] K |
Metallicity [Fe/H] | −0.18 [8] dex |
Rotational velocity (v sin i) | 11 [9] km/s |
Other designations | |
Database references | |
SIMBAD | data |
Alpha Pyxidis, Latinised from α Pyxidis, is a giant star in the constellation Pyxis. It has a stellar classification of B1.5III and is a Beta Cephei variable. This star has more than ten times the mass of the Sun and is more than six times the Sun's radius. The surface temperature is 24,300 K and the star is about 10,000 times as luminous as the Sun. [3] [4] [8] Stars such as this with more than 10 solar masses are expected to end their life by exploding as a supernova. [11]
In Chinese, 天狗 (Tiān Gǒu), meaning Celestial Dog, refers to an asterism consisting of α Pyxidis, e Velorum, f Velorum, β Pyxidis, γ Pyxidis and δ Pyxidis. Consequently, α Pyxidis itself is known as 天狗五 (Tiān Gǒu wǔ, English: the Fifth Star of Celestial Dog). [12]
{{
cite web}}
: CS1 maint: postscript (
link)