AR Andromedae

AR Andromedae

A visual band light curve for AR Andromedae, from AAVSO data, showing five outbursts.[1]
Observation data
Epoch J2000      Equinox J2000
Constellation Andromeda
Right ascension 01h 45m 03.27155s[2]
Declination +37° 58′ 33.2379″[2]
Apparent magnitude (V) 11.0 – 17.6 variable[3]
Characteristics
Spectral type pec(UG)[3]
Apparent magnitude (B) 12.8
Apparent magnitude (V) 11.00[4]
Apparent magnitude (G) 16.3185[2]
Apparent magnitude (J) 14.589[5]
Apparent magnitude (H) 13.996[5]
Apparent magnitude (K) 13.730[5]
Variable type UGSS[3]
Astrometry
Proper motion (μ) RA: 5.431±0.046[2] mas/yr
Dec.: −7.249±0.059[2] mas/yr
Parallax (π)2.4070 ± 0.0666 mas[2]
Distance1,360 ± 40 ly
(420 ± 10 pc)
Orbit[6]
Period (P)0.16302±0.00032 days
Periastron epoch (T)HJD 2450005.6924±0.0021
Semi-amplitude (K1)
(primary)		91±7 km/s
Other designations
2MASS J01450327+3756334, CRTS J014503.3+375633[7]
Database references
SIMBADdata

AR Andromedae (AR And) is a dwarf nova of the SS Cygni type in the constellation Andromeda. Its typical apparent visual magnitude is 17.6, but increases up to 11.0 magnitude during outbursts. The outbursts occur approximately every 23 days.[3]

  1. ^ Cite error: The named reference aavso was invoked but never defined (see the help page).
  2. ^ a b c d e f Cite error: The named reference dr3 was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference GCVS was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference 11colors was invoked but never defined (see the help page).
  5. ^ a b c Cite error: The named reference 2MASS Cat was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Taylor1996 was invoked but never defined (see the help page).
  7. ^ "AR And". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved October 24, 2018.