HD 30442
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| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 04h 52m 05.2193s |
| Declination | +63° 30′ 19.515″ |
| Apparent magnitude (V) | 5.488 |
| Characteristics | |
| Spectral type | M3IIIab |
| U−B color index | 1.76 |
| B−V color index | 1.57 |
| Astrometry | |
| Radial velocity (Rv) | -36.0 km/s |
| Proper motion (μ) | RA: 38.15 mas/yr Dec.: -94.28 mas/yr |
| Parallax (π) | 6.53 ± 0.71 mas |
| Distance | approx. 500 ly (approx. 150 pc) |
| Absolute magnitude (MV) | 7.016 |
| 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 30442 is a double star in the constellation Camelopardalis.
References
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