Back Gliese 676 Afrikaans Gliese 676 Spanish گلیز ۶۷۶ Persian Gliese 676 French Gliese 676 Italian グリーゼ676 Japanese Gliese 676 Polish Gliese 676 Portuguese Глизе 676 Russian Gliese 676 Swedish
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Ara |
| Right ascension | 17h 30m 11.20s[1] |
| Declination | –51° 38′ 13.1″[1] |
| Apparent magnitude (V) | 9.59 |
| Characteristics | |
| Spectral type | M0V[2]/M3V |
| Apparent magnitude (B) | 11.05/14.8 |
| Apparent magnitude (J) | 6.711 |
| Apparent magnitude (H) | 6.082 |
| Apparent magnitude (K) | 5.825 |
| B−V color index | 1.46 |
| Astrometry | |
| Radial velocity (Rv) | −39.82±0.14[3] km/s |
| Proper motion (μ) | RA: −258.759±0.034[3] mas/yr Dec.: −185.119±0.025[3] mas/yr |
| Parallax (π) | 62.5786 ± 0.0303 mas[3] |
| Distance | 52.12 ± 0.03 ly (15.980 ± 0.008 pc) |
| Absolute magnitude (MV) | 8.55 |
| Details | |
| Mass | 0.631±0.017[4]/0.29[5] M☉ |
| Radius | 0.617+0.028 −0.027[4] R☉ |
| Luminosity | 0.08892±0.00220[4] L☉ |
| Temperature | 4,014+94 −90[4] K |
| Metallicity [Fe/H] | 0.23±0.10[5] dex |
| Rotation | 41.2±3.8 d[2] |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Exoplanet Archive | data |
Gliese 676 is a 10th-magnitude wide binary system of red dwarfs that has an estimated minimum separation of 800 AU with an orbital period of greater than 20,000 years.[6] It is located approximately 54 light years away in the constellation Ara. In 2009, a gas giant was found in orbit around the primary star, in addition to its confirmation in 2011 there was also a strong indication of a companion; the second gas giant was characterised in 2012, along with two much smaller planets.
- ^ a b Cite error: The named reference
van Leeuwen2007was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
mnras452_3_2745was invoked but never defined (see the help page). - ^ a b c d Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c d Cite error: The named reference
Pineda2021was invoked but never defined (see the help page). - ^ a b Cite error: The named reference
Forveille2011was invoked but never defined (see the help page). - ^ Cite error: The named reference
4-planetwas invoked but never defined (see the help page).
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