AG Carinae information

AG Carinae
	; AG Car (Hubble Space Telescope image)
Observation data; Epoch J2000 Equinox J2000
Constellation	Carina
Right ascension	10h 56m 11.57814s
Declination	−60° 27′ 12.8107″
Apparent magnitude (V)	6.96 (5.7–9.0)
Characteristics
Spectral type	LBV
U−B color index	−0.58
B−V color index	+0.61
Variable type	LBV
Astrometry
Proper motion (μ)	RA: −4.808 mas/yr ; Dec.: +1.955 mas/yr
Parallax (π)	0.1925 ± 0.0165 mas
Distance	17,000 ± 1,000 ly ; (5,200 ± 400 pc)
Absolute magnitude (MV)	~−8 (at minimum)
Details
Mass	55 M☉
Radius	50–552 R☉
Luminosity	600,000–900,000 L☉
Temperature	8,000–26,000 K
Rotation	13±2 days
Rotational velocity (v sin i)	220±50 km/s
Other designations
	CD–59°3430, HD 94910, HIP 53461, SAO 251185, WR 31b, AAVSO 1052–69
Database references
SIMBAD	data

AG Carinae (AG Car) is a star in the constellation Carina. It is classified as a luminous blue variable (LBV) and is one of the most luminous stars in the Milky Way. The great distance (20,000 light-years) and intervening dust mean that the star is not usually visible to the naked eye; its apparent brightness varies erratically between magnitude 5.7 and 9.0.

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Observation data Epoch J2000 Equinox J2000
AG Car (Hubble Space Telescope image)
Constellation	Carina
Right ascension	10^h 56^m 11.57814^s^[1]
Declination	−60° 27′ 12.8107″^[1]
Apparent magnitude (V)	6.96^[2] (5.7–9.0)^[3]
Characteristics
Spectral type	LBV^[4]
U−B color index	−0.58^[2]
B−V color index	+0.61^[2]
Variable type	LBV^[5]
Astrometry

Proper motion (μ)	RA: −4.808^[1] mas/yr Dec.: +1.955^[1] mas/yr
Parallax (π)	0.1925 ± 0.0165 mas^[1]
Distance	17,000 ± 1,000 ly (5,200 ± 400 pc)
Absolute magnitude (M_V)	~−8 (at minimum)^[4]

Details

Mass	55^[6] `M`_☉
Radius	50^[7]–552^[8] `R`_☉
Luminosity	600,000–900,000^[9]^[a] `L`_☉
Temperature	8,000–26,000^[7] K
Rotation	13±2^[10] days
Rotational velocity (v sin i)	220±50^[10] km/s

Other designations
CD–59°3430, HD 94910, HIP 53461, SAO 251185, WR 31b, AAVSO 1052–69
Database references
SIMBAD	data

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