Astronomy:59 Andromedae

From HandWiki
Short description: Binary star system in the constellation Andromeda
59 Andromedae
Location of 59 Andromedae (circled)
Observation data
{{#ifeq:J2000|J2000.0 (ICRS)|Epoch J2000.0      Equinox J2000.0 (ICRS)| Epoch J2000      [[Astronomy:Equinox (celestial coordinates)|Equinox J2000}}
Constellation Andromeda[1]
59 And A
Right ascension  02h 10m 52.82448s[2]
Declination +39° 02′ 22.3538″[2]
Apparent magnitude (V) 6.09[1]
59 And B
Right ascension  02h 10m 53.65660s[3]
Declination +39° 02′ 35.9142″[3]
Apparent magnitude (V) 6.82[1]
Characteristics
59 And A
Evolutionary stage main sequence[2]
Spectral type B9 V[4]
B−V color index −0.054±0.006[1]
59 And B
Evolutionary stage main sequence[3][5]
Spectral type A1 Vn[4]
B−V color index +0.081±0.005[1]
Astrometry
59 And A
Radial velocity (Rv)−1.00±3.4[6] km/s
Proper motion (μ) RA: −13.492[2] mas/yr
Dec.: −14.607[2] mas/yr
Parallax (π)7.4763 ± 0.0499[2] mas
Distance436 ± 3 ly
(133.8 ± 0.9 pc)
59 And B
Radial velocity (Rv)6.0±4.6[6] km/s
Proper motion (μ) RA: −8.983[3] mas/yr
Dec.: −17.071[3] mas/yr
Parallax (π)7.4108 ± 0.0359[3] mas
Distance440 ± 2 ly
(134.9 ± 0.7 pc)
Details
59 And A
Mass2.87[7] M☉
Radius2.62[7] R☉
Luminosity91[7] L☉
Surface gravity (log g)4.06[7] cgs
Temperature11,002[7] K
Rotational velocity (v sin i)176[4] km/s
Age218[8] Myr
59 And B
Mass2.34[7] M☉
Radius2.23[7] R☉
Luminosity32[7] L☉
Surface gravity (log g)4.11[7] cgs
Temperature9,226[7] K
Rotational velocity (v sin i)233[4] km/s
Age298[3] Myr
Other designations
59 And, BD+38°425, ADS 1683, WDS J02109+3902[9]
59 And A: GC 2600, HD 13294, HIP 10176, HR 628, SAO 55330, PPM 67045[10]
59 And B: GC 2602, HD 13295, HIP 10180, HR 629, SAO 55331, PPM 67046[11]
Database references
SIMBADA
B

59 Andromedae, abbreviated 59 And, is a binary star system in the northern constellation of Andromeda with a combined apparent magnitude of 5.64. 59 Andromedae is the Flamsteed designation. As of 2017, the pair had an angular separation of 16.60″ along a position angle (PA) of 36°. Compare this to a separation of 15.3″ along a PA of 35°, as measured in 1783.[12] The two stars have an estimated physical separation of 1,370 astronomical unit|AU.[13]

The magnitude 6.09[1] primary component is a B-type main-sequence star with a stellar classification of B9 V.[4] It has 2.62 times the Sun's radius and is radiating 91 times the Sun's luminosity from its photosphere at an effective temperature of 11,002 K.[7] It is spinning with a projected rotational velocity of 176 km/s.[4]

The secondary is a magnitude 6.82[1] A-type main-sequence star with a class of A1 Vn,[4] where the 'n' suffix indicates "nebulous" lines due to rapid rotation. It is spinning with a high projected rotational velocity of 233 km/s.[4] The star has 2.34 times the Sun's mass and 2.23 times the Sun's radius. It is radiating 32 times the luminosity of the Sun and has an effective temperature of 9,226 K.[7]

References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters 38 (5): 331, doi:10.1134/S1063773712050015, Bibcode: 2012AstL...38..331A. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940  Gaia DR3 record for this source at VizieR.
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 4.6 4.7 Royer, F. et al. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics 463 (2): 671–682, doi:10.1051/0004-6361:20065224, Bibcode: 2007A&A...463..671R 
  5. ↑ Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics 537: A120, doi:10.1051/0004-6361/201117691, A120, Bibcode: 2012A&A...537A.120Z. 
  6. ↑ 6.0 6.1 de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics 546: 14, doi:10.1051/0004-6361/201219219, A61, Bibcode: 2012A&A...546A..61D. 
  7. ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 Stassun, Keivan G. et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal 158 (4): 138. doi:10.3847/1538-3881/ab3467. Bibcode: 2019AJ....158..138S. 
  8. ↑ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters 38 (12): 771. doi:10.1134/S1063773712120031. Bibcode: 2012AstL...38..771G. 
  9. ↑ "59 And". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=59+And. 
  10. ↑ "59 And A". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=59+And+A. 
  11. ↑ "59 And B". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=59+And+B. 
  12. ↑ Mason, B. D. et al. (December 2001), "The Washington Visual Double Star Catalog", The Astronomical Journal 122 (6): 3466–3471, doi:10.1086/323920, Bibcode: 2001AJ....122.3466M 
  13. ↑ Howe, K. S.; Clarke, C. J. (January 2009), "An analysis of v sin (i) correlations in early-type binaries", Monthly Notices of the Royal Astronomical Society 392 (1): 448–454, doi:10.1111/j.1365-2966.2008.14073.x, Bibcode: 2009MNRAS.392..448H. 



Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:59_Andromedae&oldid=4287649"