PV Cephei

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PV Cep
A changing fan.jpg
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]
Spectral type A5Ve[4]
Variable type T Tau[5]
Database references

PV Cep is variable star of Orion type located in the constellation of Cepheus at a distance of over 1600 light-years from Earth.[citation needed] 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.[citation needed]


  1. Lua error in Module:Citation/CS1 at line 379: attempt to call method 'match' (a nil value).
  2. 2.0 2.1 Cutri, R. M.; Skrutskie, M. F.; Van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T. et al. (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.Expression error: Unrecognized word "etal". (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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