Astronomy:CT Serpentis

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Short description: 1948 nova in the constellation Serpens
CT Serpentis
CTSerLocation.png
Location of CT Serpentis (circled in red)
Observation data
Equinox J2000.0]] (ICRS)
Constellation Serpens
Right ascension  15h 45m 39.0752s[1]
Declination +14° 22′ 31.7590″[1]
Apparent magnitude (V) ~5 Max.
16.6 Min.[2]
Characteristics
Spectral type CV[3]
Variable type Nova[2]
Astrometry
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
Distance2774+495
−268
[2] pc
Details
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
SIMBADdata

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]

References

  1. 1.0 1.1 1.2 1.3 1.4 Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode2018A&A...616A...1G.  Gaia DR2 record for this source at VizieR.
  2. 2.0 2.1 2.2 Schaefer, Bradley E. (2018). "The distances to Novae as seen by Gaia". Monthly Notices of the Royal Astronomical Society 481 (3): 3033–3051. doi:10.1093/mnras/sty2388. Bibcode2018MNRAS.481.3033S. 
  3. 3.0 3.1 3.2 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. doi:10.1093/mnras/stu2388. ISSN 1365-2966. Bibcode2015MNRAS.446.4078K. 
  4. "CT Serpentis". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=CT+Serpentis. 
  5. Duerbeck, Hilmar W. (1987). "A Reference Catalogue and Atlas of Galactic Novae". Space Science Reviews 45 (1–2): 1–14. doi:10.1007/BF00187826. Bibcode1987SSRv...45....1D. 
  6. "Ramze (Raisa) Bartaya". https://observatory.iliauni.edu.ge/ramze-raisa-bartaya/?lang=en. 
  7. Watson, Christopher (4 January 2010). "CT Serpentis". AAVSO Website. American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=34711. Retrieved 7 July 2014. 
  8. Davis, M. S. (1950). "Photographic observations of Nova Serpentis 1948". Astronomical Journal 55: 126–27. doi:10.1086/106365. Bibcode1950AJ.....55..126D.