Astronomy:HD 71334
From HandWiki
Short description: Star in the constellation of Puppis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Puppis[1] |
| Right ascension | 8h 25m 49.51538s[2] |
| Declination | −29° 55′ 50.1302″[2] |
| Apparent magnitude (V) | 7.8[3] |
| Characteristics | |
| Spectral type | G2.5V[4] |
| Astrometry | |
| Parallax (π) | 26.64 ± 0.78[2] mas |
| Distance | 122 ± 4 ly (38 ± 1 pc) |
| Details | |
| Mass | 0.94[3] M☉ |
| Surface gravity (log g) | 4.374[3] cgs |
| Temperature | 5,701[3] K |
| Metallicity [Fe/H] | −0.075[3] dex |
| Rotational velocity (v sin i) | 1.60±0.11[5] km/s |
| Age | 8.1[3] Gyr |
| Other designations | |
HD 71334, HIP 41317, CD−29° 6145, GJ 9263 | |
| Database references | |
| SIMBAD | data |
HD 71334 is a Sun-like star 126.7 light years (38.85 parsecs) from the Sun. HD 150248 is a G-type star and an older solar analog. It is older than the sun at 8.1 billion years, compared to the sun at 4.6 billion years old. At 8.1 billion years old, HD 71334 has passed its stable burning stage. HD 71334 has a lower metallicity that the Sun. HD 71334 is found in the constellations of Puppis. Puppis is one of the 88 modern constellations recognized by the International Astronomical Union. HD 71334 has a brightness of 7.8.
Sun comparison
Chart compares the sun to HD 71334.
| Identifier | J2000 Coordinates | Distance (ly) |
Stellar Class |
Temperature (K) |
Metallicity (dex) |
Age (Gyr) |
Notes | |
|---|---|---|---|---|---|---|---|---|
| Right ascension | Declination | |||||||
| Sun | — | — | 0.00 | G2V | 5,778 | +0.00 | 4.6 | [6] |
| HD 71334 [7] | 08h 25m 49.5s | −29° 55′ 50″ | 124 | G2.5V | 5701 | −0.075 | 8.1 | |
See also
- List of nearest stars
References
- ↑ "HD 71334". Sky Map. 2009. http://server1.sky-map.org/starview?object_type=1&object_id=1651697&object_name=HD+71334&locale=FR. Retrieved 2016-09-26.
- ↑ 2.0 2.1 2.2 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics 474 (2): 653–664. doi:10.1051/0004-6361:20078357. Bibcode: 2007A&A...474..653V.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 Carlos, Marília; Nissen, Poul E.; Meléndez, Jorge (2016). "Correlation between lithium abundances and ages of solar twin stars". Astronomy & Astrophysics 587: A100. doi:10.1051/0004-6361/201527478. Bibcode: 2016A&A...587A.100C.
- ↑ Gray, R. O.; Corbally, C. J.; Garrison, R. F.; McFadden, M. T.; Bubar, E. J.; McGahee, C. E.; O'Donoghue, A. A.; Knox, E. R. (2006). "Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 pc-The Southern Sample". The Astronomical Journal 132 (1): 161–170. doi:10.1086/504637. Bibcode: 2006AJ....132..161G.
- ↑ dos Santos, Leonardo A. et al. (August 2016), "The Solar Twin Planet Search. IV. The Sun as a typical rotator and evidence for a new rotational braking law for Sun-like stars", Astronomy & Astrophysics 592: 8, doi:10.1051/0004-6361/201628558, A156, Bibcode: 2016A&A...592A.156D.
- ↑ Williams, D.R. (2004). "Sun Fact Sheet". NASA. http://nssdc.gsfc.nasa.gov/planetary/factsheet/sunfact.html. Retrieved 2009-06-23.
- ↑ HD 71334 at SIMBAD - Ids - Bibliography - Image.
 |  |
