CT Serpentis


CT Serpentis
Location of CT Serpentis (circled in red)
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Serpens
Right ascension 15h 45m 39.0752s[1]
Declination +14° 22′ 31.7590″[1]
Apparent magnitude (V) ~5 Max.
16.6 Min.[2]
Spectral type CV[3]
Variable type Nova[2]
Proper motion (μ) RA: 3.780±0.119[1][1] mas/yr
Dec.: −22.338±0.095[1] mas/yr
Parallax (π)0.2304 ± 0.0629[1] mas
[2] pc
Surface gravity (log g)9.88±0.13[3] cgs
Temperature10,772±230[3] K
Other designations
Nova Ser 1948, AAVSO 1541+14, 2MASS J15453907+1422317[4]
Database references

CT Serpentis (also known as Nova Serpentis 1948) was a nova that appeared in the constellation Serpens in 1948. It was discovered by Ramze Alexander Bartaya at Abastumani Observatory on 9 April 1946.[5][6] It is thought to have reached magnitude 6.0,[7] but this is an extrapolation of its light curve as it was not observed until 9 April 1948 when it was at magnitude 9.0 and fading—clearly past its maximum.[8]


  1. ^ a b c d e 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.
  2. ^ a b c Schaefer, Bradley E. (2018). "The distances to Novae as seen by Gaia". Monthly Notices of the Royal Astronomical Society. 481 (3): 3033–3051. arXiv:1809.00180. Bibcode:2018MNRAS.481.3033S. doi:10.1093/mnras/sty2388. S2CID 118925493.
  3. ^ a b c Kepler, S. O.; et al. (February 2015). "New white dwarf stars in the Sloan Digital Sky Survey Data Release 10". Monthly Notices of the Royal Astronomical Society. 446 (4): 4078–4087. arXiv:1411.4149. Bibcode:2015MNRAS.446.4078K. doi:10.1093/mnras/stu2388. ISSN 1365-2966.
  4. ^ "CT Serpentis". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-23.
  5. ^ Duerbeck, Hilmar W. "A Reference Catalogue and Atlas of Galactic Novae". Space Science Reviews. 45 (1–2): 1–14. Bibcode:1987SSRv...45....1D. doi:10.1007/BF00187826.
  6. ^ "Ramze (Raisa) Bartaya". Abastumani Astrophysical Observatory. Abastumani Astrophysical Observatory. Retrieved 26 January 2021.
  7. ^ Watson, Christopher (4 January 2010). "CT Serpentis". AAVSO Website. American Association of Variable Star Observers. Retrieved 7 July 2014.
  8. ^ Davis, M. S. (1950). "Photographic observations of Nova Serpentis 1948". Astronomical Journal. 55: 126–27. Bibcode:1950AJ.....55..126D. doi:10.1086/106365.