 The visual band light curve of the 2007 outburst of V455 Andromedae, from AAVSO data and Kato et al. (2008)[1][2] | |
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Andromeda |
| Right ascension | 23h 34m 01.4485s[3] |
| Declination | +39° 21′ 40.8665″[3] |
| Apparent magnitude (V) | 8.5 – 16.5 variable[4] |
| Characteristics | |
| Spectral type | pec(UG)[5] |
| Apparent magnitude (B) | 16.22[6] |
| Apparent magnitude (R) | 16.14[6] |
| Apparent magnitude (G) | 16.0635[3] |
| Apparent magnitude (J) | 15.528[7] |
| Apparent magnitude (H) | 15.199[7] |
| Apparent magnitude (K) | 14.567[7] |
| Variable type | Dwarf Nova[5] |
| Astrometry | |
| Proper motion (μ) | RA: −57.141±0.075 [3] mas/yr Dec.: −139.317±0.060[3] mas/yr |
| Parallax (π) | 13.2403 ± 0.0556 mas[3] |
| Distance | 246 ± 1 ly (75.5 ± 0.3 pc) |
| Orbit[8] | |
| Period (P) | 81.08 minutes |
| Inclination (i) | 75° |
| Semi-amplitude (K1) (primary) | 36 km/s |
| Details[4] | |
| White dwarf | |
| Mass | 0.6 M☉ |
| Rotation | 67.61970396±0.00000072 s |
| Donor star | |
| Mass | 0.07 M☉ |
| Other designations | |
2MASS J23340144+3921408 | |
| Database references | |
| SIMBAD | data |
V455 Andromedae (often abbreviated to V455 And) is a dwarf nova in the constellation Andromeda. It has a typical apparent visual magnitude of 16.5, but reached a magnitude of 8.5 during the only observed outburst.
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Katowas invoked but never defined (see the help page). - ^ a b c d e f Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
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