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43 Persei
Location of 43 Persei (circled)
Observation data
Epoch J2000       Equinox J2000
Constellation Perseus
Right ascension 03h 56m 36.52069s [1]
Declination 50° 41′ 43.3646″ [1]
Apparent magnitude (V) 5.28 [2]
Characteristics
Spectral type F5V [3]
U−B color index +0.00 [4]
B−V color index +0.41 [4]
Astrometry
Radial velocity (Rv)+39.10 [5] km/s
Proper motion (μ) RA: +92.450 [1]  mas/ yr
Dec.: -129.755 [1]  mas/ yr
Parallax (π)26.0059 ± 0.1271  mas [6]
Distance125.4 ± 0.6  ly
(38.5 ± 0.2  pc)
Absolute magnitude (MV)2.23 [2]
Orbit [7]
Period (P)30.438 days
Semi-major axis (a)≥ 16  Gm (0.11  AU)
Eccentricity (e)0.631
Periastron epoch (T)2,440,873.14  JD
Argument of periastron (ω)
(secondary)		27.07°
Semi-amplitude (K1)
(primary)		51.85 km/s
Semi-amplitude (K2)
(secondary)		54.40 km/s
Details
Mass1.54 [8]  M☉
Radius2.4 [8]  R☉
Luminosity10.81 [2]  L☉
Surface gravity (log g)4.12 [9]  cgs
Temperature6,609 [9]  K
Metallicity [Fe/H]0.00 [2]  dex
Rotational velocity (v sin i)17 [10] km/s
Other designations
A Persei, 43 Per, BD+50°860, GC 4728, HD 24546, HIP 18453, HR 1210, SAO 24314, CCDM J03566+5042AP, WDS J03566+5042AD
Database references
SIMBAD data

43 Persei is a binary star [7] [11] system in the northern constellation Perseus. It is visible to the naked eye as a dim, yellow-white hued star with an apparent visual magnitude of 5.28. [2] The system is located around 38.5 parsecs (125.4 ly) distant from the Sun, based on parallax. [1]

This is a double-lined spectroscopic binary with an orbital period of 30.4 days and an eccentricity of 0.6. [7] The primary component is an F-type main-sequence star with a stellar classification of F5V, [3] a star that is fusing its core hydrogen. It has 1.54 [8] times the mass of the Sun, 2.4 [8] times the Sun's radius, and is spinning with a projected rotational velocity of 17 km/s (11 mi/s). [10] The star shines 10.8 [2] times brighter than the Sun at an effective temperature of 6,609 K (6,336 °C; 11,437 °F). [9]

There are distant companions B (separation 75.5" and magnitude 10.66), C (separation 85.6" and magnitude 12.18), and D (separation 68" and magnitude 13.43). [12]

References

  1. ^ a b c d e 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 f 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 Abt, Helmut A. (2009). "Mk Classifications of Spectroscopic Binaries". The Astrophysical Journal Supplement Series. 180: 117–118. Bibcode: 2009ApJS..180..117A. doi: 10.1088/0067-0049/180/1/117. S2CID  122811461.
  4. ^ a b Mallama, A. (2014). "Sloan Magnitudes for the Brightest Stars". The Journal of the American Association of Variable Star Observers. 42: 443. Bibcode: 2014JAVSO..42..443M. Vizier catalog entry
  5. ^ 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.
  6. ^ Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv: 1804.09365. Bibcode: 2018A&A...616A...1G. doi: 10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  7. ^ a b c Wallerstein, George (February 1973). "Improved Elements for the Hyades Group Binary 43 Persei". Publications of the Astronomical Society of the Pacific. 85 (503): 115. Bibcode: 1973PASP...85..115W. doi: 10.1086/129417.
  8. ^ a b c d Allende Prieto, C.; Lambert, D. L. (1999). "Fundamental parameters of nearby stars from the comparison with evolutionary calculations: Masses, radii and effective temperatures". Astronomy and Astrophysics. 352: 555–562. arXiv: astro-ph/9911002. Bibcode: 1999A&A...352..555A. Vizier catalog entry
  9. ^ a b c 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. Vizier catalog entry
  10. ^ a b Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode: 1995yCat.5050....0H.
  11. ^ Eggleton, P. P.; Tokovinin, A. A. (2008). "A catalogue of multiplicity among bright stellar systems". Monthly Notices of the Royal Astronomical Society. 389 (2): 869. arXiv: 0806.2878. Bibcode: 2008MNRAS.389..869E. doi: 10.1111/j.1365-2966.2008.13596.x. S2CID  14878976. Vizier catalog entry
  12. ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (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=43_Persei&oldid=1141448779"

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