59 Serpentis
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Serpens |
| Right ascension | 18h 27m 12.50775s[1] |
| Declination | 00° 11′ 45.9912″[1] |
| Apparent magnitude (V) | 5.17-5.2[2] |
| Characteristics | |
| Astrometry | |
| Other designations | |
59 Serpentis, also known as d Serpentis, is a multiple star in the constellation Serpens.[1] It is a triple star system.[3] The primary system is a spectroscopic binary consisting of an A-type star and an orange giant,[4] while the secondary is another orange giant.[5] The system shows irregular variations in brightness between magnitudes 5.17 and 5.2.[2]
References
- 1 2 3 "d Serpentis -- Double or multiple star". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 2 July 2014.
- 1 2 VSX (4 January 2010). "d Serpentis". AAVSO Website. American Association of Variable Star Observers. Retrieved 25 May 2014.
- ↑ Tilley, E. C. (1943). "A Spectrographic Study of the Triple System in 59 D Serpentis". The Astrophysical Journal. 98: 347. Bibcode:1943ApJ....98..347T. doi:10.1086/144577.
- ↑ Abt, H. A. (2009). "MK Classifications of Spectroscopic Binaries". The Astrophysical Journal Supplement Series. 180: 117. Bibcode:2009ApJS..180..117A. doi:10.1088/0067-0049/180/1/117.
- ↑ "HD 169986 – Star in double system". SIMBAD. Retrieved 25 May 2014.
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