RS Perseus is a red supergiant , a star on the right side of the Perseus constellation . Its radius exceeds the radius of the Sun by about 770 times.
| RS Perseus | |||
|---|---|---|---|
| Star | |||
 RS Perseus - a bright red giant located on the right side of the Double Cluster | |||
| Observational data ( Age J2000.0 ) | |||
| Type of | Red supergiant | ||
| Right ascension | |||
| Declination | |||
| Distance | 7 738.5 / 7 920 St. years (2,345 ± 55 pc ) [2] | ||
| Visible magnitude ( V ) | 7.82 - 10.0 [3] | ||
| Constellation | Perseus | ||
| Astrometry | |||
| Radial velocity ( R v ) | -38.0 ± 2 [4] km / s | ||
| Own movement (μ) | RA: -5.7 ± 1.8 [6] Dec: -1.4 ± 1.7 [6] | ||
| Parallax (π) | |||
| Absolute magnitude (V) | −6.18 [7] | ||
| Specifications | |||
| Spectral class | M4Iab [8] | ||
| Variability | SRc [3] | ||
| physical characteristics | |||
| Weight | 12-15 M ☉ | ||
| Radius | 770 ± 30 R ☉ | ||
| Temperature | 3470 ± 90 K | ||
| Luminosity | 77600 ± 8950 [2] L ☉ | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
Content
Location
The star is located in the open star cluster NGC 884 , which is part of the Double Cluster in Perseus [9] .
Variability
Is a semi-regular variable star . The apparent magnitude varies from 7.82 to 10.0 within 245 days [3] .
Features
The star is from the Sun at a distance of about 8000 sv. years old . Luminosity probably reaches about or more than 80 thousand units. The effective temperature is approximately 3500 K. The mass of the star is 12-15 times more than the solar mass . And the radius is about 800 solar . RS Perseus is on the list of the largest stars .
See also
- List of the biggest stars
- Yota Perseus
- Perseus A
Notes
- ↑ 1 2 Roeser, S .; Bastian, U. (1988). "A new star catalog of SAO type". Astronomy and Astrophysics Supplement Series. 74: 449. (English)
- ↑ 1 2 Baron, F .; Monnier, JD; Kiss, LL; Neilson, HR; Zhao, M .; Anderson, M .; Aarnio, A .; Pedretti, E .; Thureau, N .; Ten Brummelaar, TA; Ridgway, ST; McAlister, HA; Sturmann, J .; Sturmann, L .; Turner, N. (2014). "CHARA / MIRC Observations of Two M Supergiants in Perseus OB1: Temperature, Bayesian Modeling, and Compressed Sensing Imaging." The Astrophysical Journal. 785: 46. (English)
- ↑ 1 2 3 Samus', NN; Goranskii, VP; Durlevich, OV; Zharova, AV; Kazarovets, EV; Kireeva, NN; Pastukhova, EN; Williams, DB; Hazen, ML (2003). "An Electronic Version of the Second Volume of the General Catalog of Variable Stars with Improved Coordinates." Astronomy Letters. 29 (7): 468. (English)
- ↑ Wilson, Ralph Elmer (1953). "General catalog of stellar radial velocities". Washington. (eng.)
- ↑ 1 2 3 4 5 Gaia Data Release 2 - 2018.
- ↑ 1 2 Høg, E .; Fabricius, C .; Makarov, VV; Urban, S .; Corbin, T .; Wycoff, G .; Bastian, U .; Schwekendiek, P .; Wicenec, A. (2000). "The Tycho-2 catalog of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. (eng.)
- ↑ Levesque, Emily M .; Massey, Philip; Olsen, KAG; Plez, Bertrand; Josselin, Eric; Maeder, Andre; Meynet, Georges (2005). "The Effective Temperature Scale of Galactic Red Supergiants: Cool, but Not As Cool As We Thought." The Astrophysical Journal. 628 (2): 973. (English)
- ↑ Saesen, S .; Carrier, F .; Pigulski, A .; Aerts, C .; Handler, G .; Narwid, A .; Fu, JN; Zhang, C .; Jiang, XJ; Vanautgaerden, J .; Kopacki, G .; Stęślicki, M .; Acke, B .; Poretti, E .; Uytterhoeven, K .; Gielen, C .; Østensen, R .; De Meester, W .; Reed, MD; Kołaczkowski, Z .; Michalska, G .; Schmidt, E .; Yakut, K .; Leitner, A .; Kalomeni, B .; Cherix, M .; Spano, M .; Prins, S .; Van Helshoecht, V .; Zima, W .; Huygen, R .; Vandenbussche, B .; Lenz, P .; Ladjal, D .; Puga Antolín, E .; Verhoelst, T .; De Ridder, J .; Niarchos, P .; Liakos, A .; Lorenz, D .; Dehaes, S .; Reyniers, M .; Davignon, G .; Kim, S.-L .; Kim, DH; Lee, Y.-J .; Lee, C.-U .; Kwon, J.-H .; Broeders, E .; Van Winckel, H .; Vanhollebeke, E .; Waelkens, C .; Raskin, G .; Blom, Y .; Eggen, JR; Degroote, P .; Beck, P .; Puschnig, J .; Schmitzberger, L .; Gelven, GA; Steininger, B .; Blommaert, J .; Drummond, R .; Briquet, M .; Debosscher, J. (2010). "Photometric multi-site campaign on the open cluster NGC 884." Astronomy and Astrophysics. 515: A16. (eng.)
- ↑ Mermilliod, JC; Mayor, M .; Udry, S. (2008). "Red giants in open clusters. XIV. Mean radial velocities for 1309 stars and 166 open clusters." Astronomy and Astrophysics. 485: 303. (English)