Xi Puppis
 Location of ξ Puppis (circled) |
|
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Puppis |
| Right ascension | 07h 49m 17.65567s[1] |
| Declination | −24° 51′ 35.2305″[1] |
| Apparent magnitude (V) | 3.35[2] |
| Characteristics | |
| Spectral type | G6 Iab-Ib[3] |
| U−B color index | +1.18[2] |
| B−V color index | +1.25[2] |
| Astrometry | |
| Radial velocity (Rv) | +2.7[4] km/s |
| Proper motion (μ) | RA: −4.81[1] mas/yr Dec.: −0.89[1] mas/yr |
| Parallax (π) | 2.72 ± 0.21[1] mas |
| Distance | 1,200 ± 90 ly (370 ± 30 pc) |
| Absolute magnitude (MV) | –4.73[5] |
| Details | |
| Mass | 9.9 ± 1.0[3] M☉ |
| Surface gravity (log g) | 1.21 ± 0.09[3] cgs |
| Temperature | 4,880 ± 150[3] K |
| Age | 23[3] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
Xi Puppis (Xi Pup, ξ Puppis, ξ Pup) is a star in the southern constellation of Puppis. With an apparent visual magnitude of 3.35,[2] it is one of the brighter members of this constellation. It is a yellow supergiant. It has the traditional name Asmidiske (Azmidiske), a misplacement and mistransliteration of Aspidiske, the traditional name of ι Carinae. Based on parallax measurements made during the Hipparcos mission, it is located approximately 1,200 light-years (370 parsecs) away, with a 7.5% margin of error.[1] Because of the distance of this star from the Earth, its visual magnitude is reduced by 0.73 as a result of extinction from the intervening gas and dust.[5]
Asmidiske has a 13th magnitude companion at an apparent distance of 5".1 while it may also be a spectroscopic binary.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 2.3 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 3.3 3.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 5.0 5.1 Lua error in package.lua at line 80: module 'strict' not found.
