Back PZ Cassiopeiae Afrikaans PZ Cassiopeiae Spanish PZ Cassiopeiae French PZ Cassiopeiae Italian カシオペヤ座PZ星 Japanese 카시오페이아자리 PZ Korean PZ Cassiopeiae Portuguese PZ Кассиопеи Russian PZ Cassiopeiae SIMPLE 仙后座PZ Chinese
| 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] |
| Distance | 2,810+220 −190[8] pc |
| Absolute magnitude (MV) | −7.89[9] |
| Details | |
| Mass | 20 or 25 (initial mass)[8] M☉ |
| Radius | 1,260—1,340[8][a] R☉ |
| Luminosity | 229,000,[10] (240,000 – 270,000[8]) L☉ |
| Surface gravity (log g) | −0.5[9] cgs |
| Temperature | 3,605[3] K |
| Age | 8 or 10[8] Myr |
| Other designations | |
| Database references | |
| SIMBAD | data |
PZ Cassiopeiae is a red supergiant star located in the constellation of Cassiopeia, and a semi-regular variable star.
- ^ 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.
- ^ Cite error: The named reference
kisswas invoked but never defined (see the help page). - ^ 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.
- ^ 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.
- ^ 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.
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wdswas invoked but never defined (see the help page). - ^ 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.
- ^ a b c d e f Cite error: The named reference
Kusunowas invoked but never defined (see the help page). - ^ 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.
- ^ Cite error: The named reference
Davies2020was invoked but never defined (see the help page).
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