PV Cephei

Coordinates: 20h 45m 53.943s, +67° 57′ 38.66″

PV Cep

PV Cep is the bright spot located at the edge of Gyulbudaghian’s Nebula
Credit: ESA/Hubble & NASA. Acknowledgement: Alexey Romashin
Observation data
Epoch J2000      Equinox J2000
Constellation Cepheus[1]
Right ascension 20h 45m 53.943s[2]
Declination +67° 57′ 38.66″[2]
Apparent magnitude (V) 17.46[3]
Characteristics
Spectral type A5Ve[4]
Variable type T Tau[5]
Database references
SIMBADdata

PV Cep is variable star of Orion type located in the constellation of Cepheus at a distance of over 1600 light-years from Earth. Although the terms 'Orion variable/Orion type' are now no longer used by most astronomers. The term 'Young Stellar Object' or YSO is preferred, since 'Orion Variable' is a term which was given at a time when these objects were thought to be more homogeneous than is now known to be the case. It has been used by the CGVS compilers but astronomers generally do not use these terms any more.

References

  1. ↑ "A changing fan". ESA/Hubble Picture of the Week. Retrieved 23 April 2013.
  2. 1 2 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). "VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". VizieR On-line Data Catalog: II/246. Originally published in: 2003yCat.2246....0C. 2246. Bibcode:2003yCat.2246....0C.
  3. ↑ Kun, Mária; Balog, Zoltán; Kenyon, Scott J.; Mamajek, Eric E.; Gutermuth, Robert A. (2009). "Pre-Main-Sequence Stars in the Cepheus Flare Region". The Astrophysical Journal Supplement. 185 (2): 451. arXiv:0910.1894. Bibcode:2009ApJS..185..451K. doi:10.1088/0067-0049/185/2/451.
  4. ↑ Watson, C. L. (2006). "The International Variable Star Index (VSX)". The Society for Astronomical Sciences 25th Annual Symposium on Telescope Science. Held May 23–25. 25: 47. Bibcode:2006SASS...25...47W.
  5. ↑ Samus, N. N.; Durlevich, O. V.; et al. (2009). "VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013)". VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S. 1. Bibcode:2009yCat....102025S.


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