HD 202259
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 21h 14m 37.05s |
| Declination | +00° 05′ 32.12″ |
| Apparent magnitude (V) | 6.39 |
| Characteristics | |
| Spectral type | M1 III |
| U−B color index | 1.92 |
| B−V color index | 1.61 |
| Variable type | Variable star |
| Astrometry | |
| Radial velocity (Rv) | -123.5 km/s |
| Proper motion (μ) | RA: 36.4 mas/yr Dec.: -12.61 mas/yr |
| Parallax (π) | 4.76 ± 0.91 mas |
| Distance | approx. 700 ly (approx. 210 pc) |
| Absolute magnitude (MV) | 8.03 |
| Details | |
| Mass | 0.4 M☉ |
| Radius | 0.5 R☉ |
| Luminosity | 0.04 L☉ |
| Temperature | 2,000–3,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) | |
HD 202259 is a variable star.
References
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