49 d'Andròmeda

Infotaula objecte astronòmic49 d'Andròmeda
Tipusestel i font propera a infrarrojos Modifica el valor a Wikidata
Tipus espectral (estel)G9III[1] Modifica el valor a Wikidata
Constel·lacióAndròmeda Modifica el valor a Wikidata
ÈpocaJ2000.0 Modifica el valor a Wikidata
Característiques físiques i astromètriques
Distància de la Terra102,096 pc [2] Modifica el valor a Wikidata
Radi11 R☉ Modifica el valor a Wikidata
Diàmetre15.100.000 km[3] Modifica el valor a Wikidata
Magnitud absoluta0,5 Modifica el valor a Wikidata
Magnitud aparent (V)5,261 (banda V)[4] Modifica el valor a Wikidata
Massa2,07 M☉ Modifica el valor a Wikidata
Temperatura efectiva4.961 K[5] Modifica el valor a Wikidata
Paral·laxi9,7947 mas[2] Modifica el valor a Wikidata
Moviment propi (declinació)−42,638 mas/a [2] Modifica el valor a Wikidata
Moviment propi (ascensió recta)−0,95 mas/a [2] Modifica el valor a Wikidata
Velocitat de rotació estel·lar1,7 km/s[6] Modifica el valor a Wikidata
Velocitat radial−11,52 km/s[7] Modifica el valor a Wikidata
Gravetat superficial equatorial740 cm/s²[3] Modifica el valor a Wikidata
Ascensió recta (α)1h 30m 6.1015s[2] Modifica el valor a Wikidata
Declinació (δ)47° 0' 26.1811''[2] Modifica el valor a Wikidata
Metal·licitat0,07[3] Modifica el valor a Wikidata
Lluminositat70,8 lluminositats solars Modifica el valor a Wikidata
Edat estimada1,75 mil milions d'anys Modifica el valor a Wikidata
Catàlegs astronòmics

49 d'Andròmeda (49 Andromedae) és una estrella de la constel·lació d'Andròmeda. Té una magnitud aparent de 5,27.[8]

Referències

  1. «Intensities of isotopic C bands in the spectra of 12 N-type stars». Annales d'Astrophysique, 1958, pàg. 67.
  2. 2,0 2,1 2,2 2,3 2,4 2,5 Afirmat a: Gaia Early Data Release 3. Indicat a la font segons: SIMBAD. Llengua del terme, de l'obra o del nom: anglès. Data de publicació: 3 desembre 2020.
  3. 3,0 3,1 3,2 Jesus Maldonado «The metallicity signature of evolved stars with planets» (en anglès). Astronomy and Astrophysics, 6-2013, pàg. 84–84. DOI: 10.1051/0004-6361/201321082.
  4. Ulrich Bastian «catàleg Tycho-2». Astronomy and Astrophysics, 3-2000, pàg. L27-L30.
  5. «Evolved stars and the origin of abundance trends in planet hosts» (en anglès). Astronomy and Astrophysics, 4-2016. DOI: 10.1051/0004-6361/201527883.
  6. David W. Latham «Rotational and radial velocities for a sample of 761 Hipparcos giants and the role of binarity» (en anglès). Astronomical Journal, 1, 07-12-2007, pàg. 209–231. DOI: 10.1088/0004-6256/135/1/209.
  7. Afirmat a: Gaia Data Release 2. Indicat a la font segons: SIMBAD. Llengua del terme, de l'obra o del nom: anglès. Data de publicació: 25 abril 2018.
  8. SIMBAD, 49 Andromedae[Enllaç no actiu] (consultat el 29 de desembre de 2012)

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