59 Andromedae
| Observation data Epoch J2000 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 mas[2] |
| Distance | 436 ± 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 mas[3] |
| Distance | 440 ± 2 ly (134.9 ± 0.7 pc) |
| Details | |
| 59 And A | |
| Mass | 2.87[7] M☉ |
| Radius | 2.62[7] R☉ |
| Luminosity | 91[7] L☉ |
| Surface gravity (log g) | 4.06[7] cgs |
| Temperature | 11,002[7] K |
| Rotational velocity (v sin i) | 176[4] km/s |
| Age | 218[8] Myr |
| 59 And B | |
| Mass | 2.34[7] M☉ |
| Radius | 2.23[7] R☉ |
| Luminosity | 32[7] L☉ |
| Surface gravity (log g) | 4.11[7] cgs |
| Temperature | 9,226[7] K |
| Rotational velocity (v sin i) | 233[4] km/s |
| Age | 298[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 | |
| SIMBAD | A |
| 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 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
- ^ a b c d e f g 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.
- ^ a b c d e f Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c d e f g Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ a b c d e f g h Royer, F.; et al. (February 2007), "Rotational velocities of A-type stars. III. Velocity distributions", Astronomy and Astrophysics, 463 (2): 671–682, arXiv:astro-ph/0610785, Bibcode:2007A&A...463..671R, doi:10.1051/0004-6361:20065224, S2CID 18475298
- ^ Zorec, J.; Royer, F. (2012), "Rotational velocities of A-type stars. IV. Evolution of rotational velocities", Astronomy & Astrophysics, 537: A120, arXiv:1201.2052, Bibcode:2012A&A...537A.120Z, doi:10.1051/0004-6361/201117691, S2CID 55586789, A120.
- ^ a b 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, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, S2CID 59451347, A61.
- ^ a b c d e f g h i j k l Stassun, Keivan G.; et al. (2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467.
- ^ Gontcharov, G. A. (2012). "Dependence of kinematics on the age of stars in the solar neighborhood". Astronomy Letters. 38 (12): 771. arXiv:1606.08814. Bibcode:2012AstL...38..771G. doi:10.1134/S1063773712120031.
- ^ "59 And". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved October 3, 2018.
- ^ "59 And A". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved October 3, 2018.
- ^ "59 And B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved October 3, 2018.
- ^ Mason, B. D.; et al. (December 2001), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466–3471, Bibcode:2001AJ....122.3466M, doi:10.1086/323920
- ^ 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, Bibcode:2009MNRAS.392..448H, doi:10.1111/j.1365-2966.2008.14073.x.