AG Carinae

AG Carinae
AG Car
AG Car (Hubble Space Telescope image)
Observation data
Epoch J2000      Equinox J2000
Constellation Carina
Right ascension 10h 56m 11.57814s[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]
Distance17,000 ± 1,000 ly
(5,200 ± 400 pc)
Absolute magnitude (MV)~−8 (at minimum)[4]
Details
Mass55[6] M☉
Radius50[7]–552[8] R☉
Luminosity600,000–900,000[9][a] L☉
Temperature8,000–26,000[7] K
Rotation13±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
SIMBADdata

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.

  1. ^ a b c d e Cite error: The named reference edr3 was invoked but never defined (see the help page).
  2. ^ a b c Cite error: The named reference aass34_1 was invoked but never defined (see the help page).
  3. ^ Cite error: The named reference vsx was invoked but never defined (see the help page).
  4. ^ a b Cite error: The named reference groh2009 was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference gcvs was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference herschel was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference stahl was invoked but never defined (see the help page).
  8. ^ De Jager, Cornelis (1998). "The yellow hypergiants". Astronomy and Astrophysics Review. 8 (3): 145. Bibcode:1998A&ARv...8..145D. doi:10.1007/s001590050009.
  9. ^ Cite error: The named reference smith2019 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference apj736_1 was invoked but never defined (see the help page).


Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).