Astronomy:5 Andromedae

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Short description: Star in the constellation Andromeda
Not to be confused with Andromeda V or ν Andromedae.
5 Andromedae
Location of 5 Andromedae (circled)
Observation data
Equinox J2000.0]] (ICRS)
Constellation Andromeda[1]
Right ascension  23h 07m 45.38355s[2]
Declination +49° 17′ 44.7904″[2]
Apparent magnitude (V) 5.68[1]
Characteristics
Spectral type F5 V[3]
B−V color index 0.449±0.003[1]
Astrometry
Radial velocity (Rv)−2.6±0.3[1] km/s
Proper motion (μ) RA: 151.592(34)[2] mas/yr
Dec.: 131.723(31)[2] mas/yr
Parallax (π)29.0956 ± 0.0408[2] mas
Distance112.1 ± 0.2 ly
(34.37 ± 0.05 pc)
Absolute magnitude (MV)3.00[1]
Details[4]
Mass1.386+0.010
−0.009 M☉
Radius1.741[5] R☉
Luminosity5.62[1] L☉
Surface gravity (log g)4.12±0.02 cgs
Temperature6,605±61 K
Metallicity [Fe/H]−0.09±0.05 dex
Rotational velocity (v sin i)9.7[6] km/s
Age2.28+0.12
−0.25 Gyr
Other designations
5 And, BD+48°3944, FK5 1604, HD 218470, HIP 114210, HR 8805, SAO 52713, PPM 63843[7]
Database references
SIMBADdata

5 Andromedae is a single,[8] yellow-white hued star in the northern constellation of Andromeda, abbreviated 5 And.[1] Its designation comes from a catalogue of stars by English astronomer John Flamsteed, published in 1712. The star is faintly visible to the naked eye, having an apparent visual magnitude of 5.68.[1] Based upon an annual parallax shift of 29.1[2] mas as seen from Earth, it is located 112 light years away. 5 Andromedae is moving closer to the Sun with a radial velocity of −2.6 km/s.[1] It has a relatively high proper motion, advancing across the celestial sphere at the rate of 0.201 arc seconds per year.[9]

This is an ordinary F-type main-sequence star with a stellar classification of F5 V.[3] It is estimated to be 2.3[4] billion years old and is spinning with a projected rotational velocity of 9.7 km/s.[6] The star has 1.39[4] times the mass of the Sun and 1.74 times the Sun's radius.[5] It is radiating 5.6[1] times the Sun's luminosity from its photosphere at an effective temperature of about 6,605 K.[4]

Within Andromeda it is the second of a northerly chain asterism – 7, 8, 11 are further south-westward, with 3 Andromedae in the other direction.

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 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 Brown, A. G. A. (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics 649: A1. doi:10.1051/0004-6361/202039657. Bibcode: 2021A&A...649A...1G.  Gaia EDR3 record for this source at VizieR.
  3. ↑ 3.0 3.1 Cowley, Anne; Fraquelli, Dorothy (February 1974), "MK Spectral Types for Some Bright F Stars", Publications of the Astronomical Society of the Pacific 86 (509): 70, doi:10.1086/129562, Bibcode: 1974PASP...86...70C. 
  4. ↑ 4.0 4.1 4.2 4.3 Ramírez, I. et al. (February 2013), "Oxygen abundances in nearby FGK stars and the galactic chemical evolution of the local disk and halo", The Astrophysical Journal 764 (1): 78, doi:10.1088/0004-637X/764/1/78, Bibcode: 2013ApJ...764...78R. 
  5. ↑ 5.0 5.1 Schofield, Mathew et al. (2019), "The Asteroseismic Target List for Solar-like Oscillators Observed in 2 minute Cadence with the Transiting Exoplanet Survey Satellite", The Astrophysical Journal Supplement Series 241 (1): 12, doi:10.3847/1538-4365/ab04f5, Bibcode: 2019ApJS..241...12S. 
  6. ↑ 6.0 6.1 Schröder, C.; Reiners, Ansgar; Schmitt, Jürgen H. M. M. (January 2009), "Ca II HK emission in rapidly rotating stars. Evidence for an onset of the solar-type dynamo", Astronomy and Astrophysics 493 (3): 1099–1107, doi:10.1051/0004-6361:200810377, Bibcode: 2009A&A...493.1099S, http://goedoc.uni-goettingen.de/goescholar/bitstream/handle/1/9690/aa10377-08.pdf?sequence=2 
  7. ↑ "5 And". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=5+And. 
  8. ↑ 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, doi:10.1111/j.1365-2966.2008.13596.x, Bibcode: 2008MNRAS.389..869E. 
  9. ↑ Lépine, Sébastien; Shara, Michael M. (March 2005), "A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)", The Astronomical Journal 129 (3): 1483–1522, doi:10.1086/427854, Bibcode: 2005AJ....129.1483L. 



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