IQ Aurigae

IQ Aurigae
Observation data; Epoch J2000 Equinox J2000
Constellation	Auriga
Right ascension	05h 19m 00.0289s
Declination	+33° 44′ 54.217″
Apparent magnitude (V)	5.368
Characteristics
Spectral type	A0pSi
U−B color index	-0.55
B−V color index	-0.19
Variable type	α² CVn
Astrometry
Radial velocity (Rv)	28.6 km/s
Proper motion (μ)	RA: 13.62 mas/yr ; Dec.: -29.63 mas/yr
Parallax (π)	7.28 ± 0.7 mas
Distance	450 ± 40 ly ; (140 ± 10 pc)
Absolute magnitude (MV)	–0.42
Details
Mass	3.95 ± 0.21 M☉
Radius	2.6 ± 0.4 R☉
Luminosity	263 L☉
Surface gravity (log g)	4.34 ± 0.12 cgs
Temperature	14,454 K
Rotation	2.4660 days
Other designations
	BD+33° 1008, HD 34452, HIP 24799, HR 1732, SAO 57884.
Database references
SIMBAD	data
Data sources:
Hipparcos Catalogue,; CCDM (2002),; Bright Star Catalogue (5th rev. ed.)

IQ Aurigae is variable star.

References

^ ^a ^b ^c ^d ^e ^f ^g North, P. (1998), "Do SI stars undergo any rotational braking?", Astronomy and Astrophysics, 334: 181–187, arXiv:astro-ph/9802286, Bibcode:1998A&A...334..181N {{citation}}: Unknown parameter |month= ignored (help)

This variable star–related article is a stub. You can help Wikipedia by expanding it.

Observation data Epoch J2000 Equinox J2000
Constellation	Auriga
Right ascension	05^h 19^m 00.0289^s
Declination	+33° 44′ 54.217″
Apparent magnitude (V)	5.368
Characteristics
Spectral type	A0pSi
U−B color index	-0.55
B−V color index	-0.19
Variable type	α² CVn
Astrometry

Radial velocity (R_v)	28.6 km/s
Proper motion (μ)	RA: 13.62 mas/yr Dec.: -29.63 mas/yr
Parallax (π)	7.28 ± 0.7 mas
Distance	450 ± 40 ly (140 ± 10 pc)
Absolute magnitude (M_V)	–0.42^[1]

Details

Mass	3.95 ± 0.21^[1] `M`_☉
Radius	2.6 ± 0.4^[1] `R`_☉
Luminosity	263^[1] `L`_☉
Surface gravity (log g)	4.34 ± 0.12^[1] cgs
Temperature	14,454^[1] K
Rotation	2.4660 days^[1]

Other designations
BD+33° 1008, HD 34452, HIP 24799, HR 1732, SAO 57884.
Database references
SIMBAD	data
Data sources:
Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.)