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34 Persei
Location of 34 Persei (circled)
Observation data
Epoch J2000       Equinox J2000
Constellation Perseus
Right ascension 03h 29m 22.05019s [1]
Declination 49° 30′ 32.2114″ [1]
Apparent magnitude (V) 4.67 [2] (4.76 + 7.18) [3]
Characteristics
Spectral type B3V [4]
U−B color index −0.57 [5]
B−V color index −0.09 [5]
Astrometry
Radial velocity (Rv)−3.50 [6] km/s
Proper motion (μ) RA: +22.20 [1]  mas/ yr
Dec.: −29.49 [1]  mas/ yr
Parallax (π)6.05 ± 0.36  mas [1]
Distance540 ± 30  ly
(165 ± 10  pc)
Absolute magnitude (MV)−1.62 [2]
Details
32 Per A
Mass6.9±0.1 [7]  M☉
Radius3.1 [8]  R☉
Luminosity671 [2]  L☉
Surface gravity (log g)4.076 [9]  cgs
Temperature16,421 [9]  K
Rotational velocity (v sin i)200 [9] km/s
Age29.3±3.4 [7]  Myr
Other designations
34 Per, BD+49°945, FK5 1549, GC 4133, HD 21428, HIP 16244, HR 1044, SAO 38872, CCDM J03294+4931AB, WDS J03294+4931AB [10]
Database references
SIMBAD data

34 Persei is a binary star [3] system in the northern constellation of Perseus. It is visible to the naked eye as a faint, blue-white hued point of light with a combined apparent visual magnitude of 4.67. [2] The system is located approximately 540  light years away from the Sun based on parallax, [1] but it is drifting closer with a radial velocity of −3.5 km/s. [6] It is a likely member of the Alpha Persei Cluster. [11]

The primary member, designated component A, is a B-type main-sequence star with a stellar classification of B3V [4] and visual magnitude 4.76. [3] It is an estimated 29 [7] million years old with a high rate of spin, showing a projected rotational velocity of 200 km/s. [9] The star has 6.9 [7] times the mass of the Sun and about 3.1 [8] times the Sun's radius. It is radiating 671 [2] times the Sun's luminosity from its photosphere at an effective temperature of 16,421 K. [9]

The secondary companion, component B, has an angular separation of 0.6 ″ from the primary and visual magnitude of 7.34. [12]

References

  1. ^ a b c d e f 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. Vizier catalog entry
  2. ^ a b c d e 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
  3. ^ a b c 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): 869–879. arXiv: 0806.2878. Bibcode: 2008MNRAS.389..869E. doi: 10.1111/j.1365-2966.2008.13596.x. S2CID  14878976.
  4. ^ a b 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.
  5. ^ a b 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
  6. ^ a b Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053. Bibcode: 2006AstL...32..759G. doi: 10.1134/S1063773706110065. S2CID  119231169.
  7. ^ a b c d 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): 190–200. arXiv: 1007.4883. Bibcode: 2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x. S2CID  118629873.
  8. ^ a b 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.): 521–524, arXiv: astro-ph/0012289, Bibcode: 2001A&A...367..521P, doi: 10.1051/0004-6361:20000451, S2CID  425754
  9. ^ a b c d e David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to 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.
  10. ^ "34 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-07-12.
  11. ^ Zuckerman, B.; et al. (June 2012). "Stellar Membership and Dusty Debris Disks in the α 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.
  12. ^ 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
Retrieved from " https://en.wikipedia.org/?title=34_Persei&oldid=1235292963"
From Wikipedia, the free encyclopedia
34 Persei
Location of 34 Persei (circled)
Observation data
Epoch J2000       Equinox J2000
Constellation Perseus
Right ascension 03h 29m 22.05019s [1]
Declination 49° 30′ 32.2114″ [1]
Apparent magnitude (V) 4.67 [2] (4.76 + 7.18) [3]
Characteristics
Spectral type B3V [4]
U−B color index −0.57 [5]
B−V color index −0.09 [5]
Astrometry
Radial velocity (Rv)−3.50 [6] km/s
Proper motion (μ) RA: +22.20 [1]  mas/ yr
Dec.: −29.49 [1]  mas/ yr
Parallax (π)6.05 ± 0.36  mas [1]
Distance540 ± 30  ly
(165 ± 10  pc)
Absolute magnitude (MV)−1.62 [2]
Details
32 Per A
Mass6.9±0.1 [7]  M☉
Radius3.1 [8]  R☉
Luminosity671 [2]  L☉
Surface gravity (log g)4.076 [9]  cgs
Temperature16,421 [9]  K
Rotational velocity (v sin i)200 [9] km/s
Age29.3±3.4 [7]  Myr
Other designations
34 Per, BD+49°945, FK5 1549, GC 4133, HD 21428, HIP 16244, HR 1044, SAO 38872, CCDM J03294+4931AB, WDS J03294+4931AB [10]
Database references
SIMBAD data

34 Persei is a binary star [3] system in the northern constellation of Perseus. It is visible to the naked eye as a faint, blue-white hued point of light with a combined apparent visual magnitude of 4.67. [2] The system is located approximately 540  light years away from the Sun based on parallax, [1] but it is drifting closer with a radial velocity of −3.5 km/s. [6] It is a likely member of the Alpha Persei Cluster. [11]

The primary member, designated component A, is a B-type main-sequence star with a stellar classification of B3V [4] and visual magnitude 4.76. [3] It is an estimated 29 [7] million years old with a high rate of spin, showing a projected rotational velocity of 200 km/s. [9] The star has 6.9 [7] times the mass of the Sun and about 3.1 [8] times the Sun's radius. It is radiating 671 [2] times the Sun's luminosity from its photosphere at an effective temperature of 16,421 K. [9]

The secondary companion, component B, has an angular separation of 0.6 ″ from the primary and visual magnitude of 7.34. [12]

References

  1. ^ a b c d e f 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. Vizier catalog entry
  2. ^ a b c d e 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
  3. ^ a b c 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): 869–879. arXiv: 0806.2878. Bibcode: 2008MNRAS.389..869E. doi: 10.1111/j.1365-2966.2008.13596.x. S2CID  14878976.
  4. ^ a b 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.
  5. ^ a b 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
  6. ^ a b Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv: 1606.08053. Bibcode: 2006AstL...32..759G. doi: 10.1134/S1063773706110065. S2CID  119231169.
  7. ^ a b c d 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): 190–200. arXiv: 1007.4883. Bibcode: 2011MNRAS.410..190T. doi: 10.1111/j.1365-2966.2010.17434.x. S2CID  118629873.
  8. ^ a b 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.): 521–524, arXiv: astro-ph/0012289, Bibcode: 2001A&A...367..521P, doi: 10.1051/0004-6361:20000451, S2CID  425754
  9. ^ a b c d e David, Trevor J.; Hillenbrand, Lynne A. (2015). "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to 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.
  10. ^ "34 Per". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-07-12.
  11. ^ Zuckerman, B.; et al. (June 2012). "Stellar Membership and Dusty Debris Disks in the α 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.
  12. ^ 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
Retrieved from " https://en.wikipedia.org/?title=34_Persei&oldid=1235292963"

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