Astronomy:HD 71334
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Short description: Star in the constellation of Puppis
| Observation data Equinox J2000.0]] (ICRS) | |
|---|---|
| Constellation | Puppis[1] |
| Right ascension | 08h 25m 49.51557s[2] |
| Declination | −29° 55′ 50.1338″[2] |
| Apparent magnitude (V) | 7.8[3] |
| Characteristics | |
| Evolutionary stage | main sequence[2] |
| Spectral type | G2.5V[4] |
| Astrometry | |
| Proper motion (μ) | RA: +139.242[2] mas/yr Dec.: −292.471[2] mas/yr |
| Parallax (π) | 25.4904 ± 0.0174[2] mas |
| Distance | 127.95 ± 0.09 ly (39.23 ± 0.03 pc) |
| Absolute magnitude (MV) | 4.94[1] |
| Details | |
| Mass | 0.94[3] M☉ |
| Radius | 1.045[2] R☉ |
| Luminosity | 0.993[2] L☉ |
| 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 | |
| Database references | |
| SIMBAD | data |
HD 71334 is a Sun-like star 128 light years (39 parsecs) from the Sun. HD 71334 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 | 5,701 | −0.075 | 8.1 | |
See also
- List of nearest stars
References
- ↑ 1.0 1.1 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ 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.
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