G 185-32
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Vulpecula |
| Right ascension | 19h 37m 13.68s[1] |
| Declination | +27° 43′ 18.7″[1] |
| Apparent magnitude (V) | 13.00[2] |
| Characteristics | |
| Spectral type | DA4.0[3] |
| B−V color index | 0.17 |
| Variable type | ZZA[2] |
| Astrometry | |
| Proper motion (μ) | RA: 436[4] mas/yr Dec.: 16[4] mas/yr |
| Parallax (π) | 54 ± 3[5] mas |
| Distance | 60 ± 3 ly (19 ± 1 pc) |
| Absolute magnitude (MV) | 11.66 |
| Other designations | |
EGGR 277, LSPM J1937+2743, USNO-B1.0 1177-00513805, WD 1935+276, USNO 352, WD 1935+27, NLTT 48026, GJ 1241, PG 1935+276, PY Vulpeuclae. | |
G 185-32, also known by the variable star designation PY Vulpeculae, is a white dwarf in the constellation Vulpecula. Located approximately 19 parsecs (62 ly) distant,[5] the stellar remnant is a ZZ Ceti variable, varying by 0.02 apparent magnitudes from the mean of 13.00.[2]
References
- ↑ 1.0 1.1 Cutri, R. M.; Skrutskie, M. F.; van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T.; Fowler, J.; Gizis, J.; Howard, E.; Huchra, J.; Jarrett, T.; Kopan, E. L.; Kirkpatrick, J. D.; Light, R. M.; Marsh, K. A.; McCallon, H.; Schneider, S.; Stiening, R.; Sykes, M.; Weinberg, M.; Wheaton, W. A.; Wheelock, S.; Zacarias, N. (2003). "2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". University of Massachusetts and Infrared Processing and Analysis Center (IPAC/California Institute of Technology). Bibcode:2003yCat.2246....0C.
- ↑ 2.0 2.1 2.2 VSX (4 January 2010). "PY Vulpeculae". AAVSO Website. American Association of Variable Star Observers. Retrieved 19 October 2014.
- ↑ Gianninas, A.; Bergeron, P.; Ruiz, M. T. (2011). "A Spectroscopic Survey and Analysis of Bright, Hydrogen-Rich White Dwarfs". The Astrophysical Journal 743 (2): 138. doi:10.1088/0004-637X/743/2/138.
- ↑ 4.0 4.1 Lépine, S. B.; Shara, M. M. (2005). "A Catalog of Northern Stars with Annual Proper Motions Larger than 0."15 (LSPM-NORTH Catalog)". The Astronomical Journal 129 (3): 1483. doi:10.1086/427854.
- ↑ 5.0 5.1 Harrington, R. S.; Dahn, C. C. (1980). "Summary of U.S. Naval Observatory parallaxes". The Astronomical Journal 85: 454. doi:10.1086/112696.
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||