Gliese 880
| Observation data Epoch J2000 Equinox | |
|---|---|
| Constellation | Pegasus |
| Right ascension | 22h 56m 34.8048s |
| Declination | 16° 33′ 12.35″ |
| Characteristics | |
| Evolutionary stage | Main sequence |
| Spectral type | M2.0V |
| Apparent magnitude (U) | 11.323 |
| Apparent magnitude (B) | 10.143 |
| Apparent magnitude (V) | 8.638 |
| Apparent magnitude (R) | 7.657 |
| Apparent magnitude (I) | 6.542 |
| Apparent magnitude (J) | 5.360 |
| Apparent magnitude (H) | 4.800 |
| Apparent magnitude (K) | 4.523 |
| Astrometry | |
| Radial velocity (Rv) | -27.44 ± 0.09 km/s |
| Proper motion (μ) | RA: -1034.34 ± 0.97 mas/yr Dec.: -284.09 ± 1.06 mas/yr |
| Parallax (π) | 146.09 ± 1.00 mas |
| Distance | 6.88 ± 5.73−2[1] pc |
| Details[1] | |
| Mass | 0.5860±0.0586 M☉ |
| Radius | 0.689±0.044 R☉ |
| Temperature | 3373 ± 100 K |
| Metallicity [Fe/H] | -0.04 ± 0.2 dex |
| Rotation | 37.5±0.1 d[2] |
| Rotational velocity (v sin i) | < 2.8 km/s |
| Database references | |
| SIMBAD | data |
Gliese 880 (GJ 880 / HD 216899)[3] is a red dwarf star in the constellation of Pegasus.
References
- 1 2 Lopez‐Morales, Mercedes (May 2007). "On the Correlation between the Magnetic Activity Levels, Metallicities, and Radii of Low‐Mass Stars" (PDF). The Astrophysical Journal. 660 (1): 732–739. arXiv:astro-ph/0701702
. Bibcode:2007ApJ...660..732L. doi:10.1086/513142. Retrieved 4 April 2015. - ↑ Suárez Mascareño, A.; et al. (September 2015), "Rotation periods of late-type dwarf stars from time series high-resolution spectroscopy of chromospheric indicators", Monthly Notices of the Royal Astronomical Society, 452 (3): 2745−2756, arXiv:1506.08039, Bibcode:2015MNRAS.452.2745S, doi:10.1093/mnras/stv1441.
- ↑ "Gliese 880". SIMBAD. Retrieved 4 April 2015.
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