SU Andromedae

SU Andromedae

SU Andromedae in optical light
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Andromeda
Right ascension 00h 04m 36.4076s[1]
Declination +43° 33′ 04.7264″[1]
Apparent magnitude (V) 8.0 to 8.5[2]
Characteristics
Spectral type C6,4(C5II)[2]
U−B color index +4.13[3]
B−V color index +2.58[3]
Variable type LC[2]
Astrometry
Proper motion (μ) RA: −3.362±0.058 [1] mas/yr
Dec.: −2.097±0.040 [1] mas/yr
Parallax (π)0.6979 ± 0.0439 mas[1]
Distance4,700 ± 300 ly
(1,430 ± 90 pc)
Absolute magnitude (MV)−2.2[4]
Details
SU And
Luminosity2,535[5] L☉
Temperature2,905[5] K
co-moving companion
Radius1.95[6] R☉
Luminosity9.833[6] L☉
Temperature7,311[6] K
Other designations
SU Andromedae, SU And, HD 225217, HIP 363, BD+42 4827
Database references
SIMBADdata

SU Andromedae is a carbon star in the constellation of Andromeda. It is a variable star classified as a slow irregular pulsating supergiant, and varies from an apparent visual magnitude of 8.5 at minimum brightness to a magnitude of 8.0 at maximum brightness with no clear period.[2]

  1. ^ a b c d e Cite error: The named reference Gaia DR2 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference gcvs was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference richer was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference olson was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference bergeat was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference dr2b was invoked but never defined (see the help page).