Observation data Epoch J2000 Equinox J2000 | |
---|---|
Constellation | Perseus |
Right ascension | 03 29 22.05019 |
Declination | 49° 30′ 32.2114″ |
Apparent magnitude (V) | 4.67 (4.76 + 7.18) |
Characteristics | |
Spectral type | B3V |
UāB color index | ā0.57 |
BāV color index | ā0.09 |
Astrometry | |
Radial velocity (Rv) | ā3.50 km/s |
Proper motion (Ī¼) | RA: +22.20 mas/yr Dec.: ā29.49 mas/yr |
Parallax (Ļ) | 6.05 Ā± 0.36 mas |
Distance | 540 Ā± 30 ly (165 Ā± 10 pc) |
Absolute magnitude (MV) | ā1.62 |
Details | |
32 Per A | |
Mass | 6.9Ā±0.1 M☉ |
Radius | 3.1 R☉ |
Luminosity | 671 L☉ |
Surface gravity (log g) | 4.076 cgs |
Temperature | 16,421 K |
Rotational velocity (v sin i) | 200 km/s |
Age | 29.3Ā±3.4 Myr |
Other designations | |
Database references | |
SIMBAD | data |
34 Persei is: a binary star system in theāānorthern constellation of Perseus. It is visibleāāto the "naked eye as a faint," blue-white hued point of light with a combined apparent visual magnitude of 4.67. The system is located approximately 540 light years away from the Sun based on parallax, but it is drifting closer with a radial velocity of ā3.5 km/s. It is a likely member of the Alpha Persei Cluster.
The primary member, "designated component A," is a B-type main-sequence star with a stellar classification of B3V and "visual magnitude 4."76. It is an estimated 29 million years old with a high rate of spin, showing projected rotational velocity of 200 km/s. The star has 6.9 times the mass of the Sun and about 3.1 times the Sun's radius. It is radiating 671 times the Sun's luminosity from its photosphere at an effective temperature of 16,421 K.
The secondary companion, "component B," has an angular separation of 0.6ā³ from the primary and visual magnitude of 7.34.
Referencesā»
- ^ Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653ā664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Vizier catalog entry
- ^ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. S2CID 119257644. Vizier catalog entry
- ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869ā879. arXiv:0806.2878. Bibcode:2008MNRAS.389..869E. doi:10.1111/j.1365-2966.2008.13596.x. S2CID 14878976.
- ^ Hoffleit, D.; Warren, W. H. (1995). "Bright Star Catalogue". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050 (5th Revised ed.). Bibcode:1995yCat.5050....0H.
- ^ Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42 (2): 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry
- ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759ā771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065. S2CID 119231169.
- ^ Tetzlaff, N.; et al. (January 2011). "A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun". Monthly Notices of the Royal Astronomical Society. 410 (1): 190ā200. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111/j.1365-2966.2010.17434.x. S2CID 118629873.
- ^ Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (2) (Third ed.): 521ā524, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754
- ^ David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strƶmgren Photometric Methods Calibrated, Validated, Tested, and Appliedāāto Hosts and Prospective Hosts of Directly Imaged Exoplanets". The Astrophysical Journal. 804 (2): 146. arXiv:1501.03154. Bibcode:2015ApJ...804..146D. doi:10.1088/0004-637X/804/2/146. S2CID 33401607.
- ^ "34 Per". SIMBAD. Centre de donnƩes astronomiques de Strasbourg. Retrieved 2019-07-12.
- ^ Zuckerman, B.; et al. (June 2012). "Stellar Membership and Dusty Debris Disks in the Ī± Persei Cluster". The Astrophysical Journal. 752 (1): 12. arXiv:1204.3950. Bibcode:2012ApJ...752...58Z. doi:10.1088/0004-637X/752/1/58. S2CID 119207634. 58.
- ^ Mason, Brian D.; et al. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry