HD 21447
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Camelopardalis |
| Right ascension | 03h 30m 00.1837s |
| Declination | +55° 27′ 06.51″ |
| Apparent magnitude (V) | 5.099 |
| Characteristics | |
| Spectral type | A1V |
| U−B color index | 0.04 |
| B−V color index | 0.05 |
| R−I color index | -0.01 |
| Variable type | Variable star NSV 1159 |
| Astrometry | |
| Proper motion (μ) | RA: -45.38 mas/yr Dec.: -11.77 mas/yr |
| Parallax (π) | 17.07 ± 0.69 mas |
| Distance | 191 ± 8 ly (59 ± 2 pc) |
| Absolute magnitude (MV) | 5.14 |
| Details | |
| Mass | 3,1 M☉ |
| Radius | 2,1 R☉ |
| Luminosity | 40 L☉ |
| Temperature | 7,500–10,000 K |
| Rotation | 179 km/s 0,001628348735 Year |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 21447 (or D Camelopardalis), is a star located in the constellation Camelopardalis. The star is also known as HR 1046.
HD 21447 an A-type main-sequence star with an effective temperature of 9400 K. It has an apparent visual magnitude of +5.09, and an absolute visual magnitude of +1.25. It is located 190 light years from the Sun, and has a mass of 2.6 solar masses. HD 21447 is an irregular variable star.
References
- http://www.alcyone.de/cgi-bin/search.pl?object=HR1046
- http://server3.wikisky.org/starview?object_type=1&object_id=1996
- http://simbad.u-strasbg.fr/simbad/sim-id?Ident=HR+1046&NbIdent=1&Radius=2&Radius.unit=arcmin&submit=submit+id
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