HD 70555
Star in the constellation Puppis
From Wikipedia, the free encyclopedia
HD 70555 (w Puppis) is a class K2.5II-III[3] (orange giant) star in the constellation Puppis. Its apparent magnitude is 4.83[2] and it is approximately 1,010 light years away based on parallax.[1]
 | |
| Observation data Epoch J2000 Equinox ICRS | |
|---|---|
| Constellation | Puppis |
| Right ascension | 08h 21m 23.02665s[1] |
| Declination | −33° 03′ 15.7147″[1] |
| Apparent magnitude (V) | 4.83[2] |
| Characteristics | |
| Spectral type | K2.5II-III[3] |
| U−B color index | +1.60[2] |
| B−V color index | +1.45[2] |
| Astrometry | |
| Radial velocity (Rv) | +33.20[4] km/s |
| Proper motion (μ) | RA: −11.11[1] mas/yr Dec.: +2.85[1] mas/yr |
| Parallax (π) | 3.24±0.25 mas[1] |
| Distance | 1,010 ± 80 ly (310 ± 20 pc) |
| Absolute magnitude (MV) | −2.60[5] |
| Details | |
| Mass | 7.9[6] M☉ |
| Luminosity | 2,230[5] L☉ |
| Surface gravity (log g) | 1.67[7] cgs |
| Temperature | 4,265[8] K |
| Metallicity [Fe/H] | −0.12[5] dex |
| Rotational velocity (v sin i) | 3.8[9] km/s |
| Other designations | |
| w Puppis, CD−32°5185, FK5 1219, GC 11400, GSC 07126-03938, HIP 40945, HR 3282, HD 70555, SAO 199118 | |
| Database references | |
| SIMBAD | data |
w Puppis should not be confused with W Puppis (Uppercase, Bayer designation),[10] or W Puppis (Uppercase, Variable star designation).[11]
