Fomalhaut C
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 48m 04.49285s |
| Declination | −24° 22′ 07.7178″ |
| Apparent magnitude (V) | 12.624 |
| Characteristics | |
| Spectral type | M4V |
| Astrometry | |
| Radial velocity (Rv) | 5.77±0.58 km/s |
| Proper motion (μ) | RA: 331.609 mas/yr Dec.: −183.805 mas/yr |
| Parallax (π) | 130.2707±0.0325 mas |
| Distance | 25.037 ± 0.006 ly (7.676 ± 0.002 pc) |
| Absolute magnitude (MV) | 13.21 ± 0.02 |
| Details | |
| Mass | 0.18±0.02 M☉ |
| Radius | 0.23 ± 0.01 R☉ |
| Luminosity | 0.004603 L☉ |
| Temperature | 3,132±65 K |
| Metallicity [Fe/H] | −0.1 dex |
| Rotation | 0.466 days |
| Other designations | |
| Fomalhaut C, α PsA C, LP 876-10, NLTT 54872, WDS J22577-2937C, 2MASS J22480446-2422075, Gaia DR2 6623351805412369024 | |
Location of Fomalhaut C in the constellation Aquarius | |
| Database references | |
| SIMBAD | data |
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Fomalhaut C, also designated LP 876-10, is the distant third star of the Fomalhaut system. It is about five degrees from Fomalhaut, roughly halfway between it and the Helix Nebula. It is currently 2.5 light-years (0.77 pc) from Fomalhaut (A), and 3.2 light-years away from Fomalhaut B (0.987 pc). The entire system is approximately 25 light-years (7.7 pc) from the Solar System.