PZ Cassiopeiae

PZ Cassiopeiae

PZ Cassiopeiae is the bright star towards the upper right in this WISE infrared image.
Observation data
Epoch J2000      Equinox J2000
Constellation Cassiopeia
Right ascension 23h 44m 03.28104s[1]
Declination +61° 47′ 22.1823″[1]
Apparent magnitude (V) 8.2 – 10.2[2]
Characteristics
Evolutionary stage Red supergiant
Spectral type M3Iab[3]
U−B color index +1.32[4]
B−V color index +2.58[4]
Variable type SRc[5] + Cepheid[6]
Astrometry
Radial velocity (Rv)–45.68[7] km/s
Proper motion (μ) RA: −4.15[1] mas/yr
Dec.: −3.55[1] mas/yr
Parallax (π)0.356 ± 0.026 mas[8]
Distance2,810+220
−190[8] pc
Absolute magnitude (MV)−7.89[9]
Details
Mass20 or 25 (initial mass)[8] M☉
Radius1,259—1,336,[8][a] 1,231[10] R☉
Luminosity229,000,[11]
(240,000 – 270,000[8]) L☉
Surface gravity (log g)−0.5[9] cgs
Temperature3,605[3] K
Age8 or 10[8] Myr
Other designations
PZ Cas, IRC +60417, HIP 117078, BD+60°2613, RAFGL 3138
Database references
SIMBADdata

PZ Cassiopeiae is a red supergiant star located in the constellation of Cassiopeia, and a semi-regular variable star.

  1. ^ a b c d Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600.
  2. ^ Cite error: The named reference kiss was invoked but never defined (see the help page).
  3. ^ a b Verhoelst, T.; Zypen, N. Van der; Hony, S.; Decin, L.; Cami, J.; Eriksson, K. (1 April 2009). "The dust condensation sequence in red supergiant stars". Astronomy & Astrophysics. 498 (1): 127–138. arXiv:0901.1262. Bibcode:2009A&A...498..127V. doi:10.1051/0004-6361/20079063. ISSN 0004-6361.
  4. ^ a b Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
  5. ^ Le Squeren, A. M.; Sivagnanam, P.; Dennefeld, M.; David, P. (1992). "A Complete Survey of OH / Infrared Objects from the IRAS LRS Sources Within a Domain of the Color Diagram". Astronomy and Astrophysics. 254: 133. Bibcode:1992A&A...254..133L.
  6. ^ Cite error: The named reference wds was invoked but never defined (see the help page).
  7. ^ Famaey, B.; Jorissen, A.; Luri, X.; Mayor, M.; Udry, S.; Dejonghe, H.; Turon, C. (2005). "Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data. Revisiting the concept of superclusters". Astronomy and Astrophysics. 430: 165. arXiv:astro-ph/0409579. Bibcode:2005A&A...430..165F. doi:10.1051/0004-6361:20041272. S2CID 17804304.
  8. ^ a b c d e f Cite error: The named reference Kusuno was invoked but never defined (see the help page).
  9. ^ a b Levesque, E. M.; Massey, P.; Olsen, K. A. G.; Plez, B.; Josselin, E.; Maeder, A.; Meynet, G. (2005). "The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not as Cool as We Thought". The Astrophysical Journal. 628 (2): 973–985. arXiv:astro-ph/0504337. Bibcode:2005ApJ...628..973L. doi:10.1086/430901. S2CID 15109583.
  10. ^ Healy, Sarah; Horiuchi, Shunsaku; Molla, Marta Colomer; Milisavljevic, Dan; Tseng, Jeff; Bergin, Faith; Weil, Kathryn; Tanaka, Masaomi (23 March 2024). "Red Supergiant Candidates for Multimessenger Monitoring of the Next Galactic Supernova". Monthly Notices of the Royal Astronomical Society. 529 (4): 3630–3650. arXiv:2307.08785. doi:10.1093/mnras/stae738. ISSN 0035-8711.
  11. ^ Cite error: The named reference Davies2020 was invoked but never defined (see the help page).


Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).