HD 21447

HD 21447

Observation data Epoch J2000      Equinox J2000
Constellation	Camelopardalis
Right ascension	03^h 30^m 00.1837^s
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
HD 21447, SV* ZI 191, BD+54° 684, HIP 16292, HR 1046, SAO 24064.
Database references
SIMBAD	data
Data sources:
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.)

HD 21447 (or D Camelopardalis), is a star located in the constellation Camelopardalis. The star is also known as HR 1046.

HD 21447 an A1V Dwarf star with an effective temperature of 9400 Kelvin. 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.

HD 21447 is located at Right Ascension 03h 30m 00.20s and Declination +55 deg 27 arcmin 07 arcsec.

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