HD 8671

HD 8671
HD 8671
Classificazionenana bianco-gialla nella sequenza principale
Classe spettraleF7V D ~
Distanza dal Sole135 anni luce
CostellazioneAndromeda
Redshift0,000102 ± 0,000003
Coordinate
(all'epoca J2000.0)
Ascensione retta01h 26m 18,6860s
Declinazione+43° 27′ 27,861″
Lat. galattica-18,9612°
Long. galattica129,6129°
Dati fisici
Raggio medio1,95 R⊙
Massa
1,39 M⊙
Acceleraz. di gravità in superficie4,00 logg
Temperatura
superficiale
  • 6309,57 K (media)
Metallicità45% del Sole
Dati osservativi
Magnitudine app.5,98
Magnitudine ass.2,9
Parallasse24,21 ± 0,74 mas
Moto proprioAR: 108,31 ± 0,67 mas/anno
Dec: -60,45 ± 0,55 mas/anno
Velocità radiale30,6 ± 0,9 km/s
Nomenclature alternative
HIP 6711, IRAS 01233+4311, TD1 814, AG +43 172, GSC 02825-02668, PPM 43979, TYC 2825-2668-1, BD +42 302, HD 8671, ROT 204, UBV M 8172, GC 1729, HIC 6711, SAO 37204, uvby98 100008671, GCRV 811, HR 409
Modifica dati su Wikidata · Manuale

HD 8671 è una stella nana bianco-gialla nella sequenza principale di magnitudine 5,98 situata nella costellazione di Andromeda. Dista 135 anni luce dal sistema solare.

Osservazione

Si tratta di una stella situata nell'emisfero celeste boreale. La sua posizione moderatamente boreale fa sì che questa stella sia osservabile specialmente dall'emisfero nord, in cui si mostra alta nel cielo nella fascia temperata; dall'emisfero australe la sua osservazione risulta invece più penalizzata, specialmente al di fuori della sua fascia tropicale. La sua magnitudine pari a 6 la pone al limite della visibilità ad occhio nudo, pertanto per essere osservata senza l'ausilio di strumenti occorre un cielo limpido e possibilmente senza Luna.

Il periodo migliore per la sua osservazione nel cielo serale ricade nei mesi compresi fra settembre e febbraio; nell'emisfero nord è visibile anche per un periodo maggiore, grazie alla declinazione boreale della stella, mentre nell'emisfero sud può essere osservata solo durante i mesi della tarda primavera e inizio estate australi.

Caratteristiche fisiche

La stella è una nana bianco-gialla nella sequenza principale; possiede una magnitudine assoluta di 2,9 e la sua velocità radiale positiva indica che la stella si sta allontanando dal sistema solare.

Voci correlate

Collegamenti esterni

  Portale Stelle: accedi alle voci di Wikipedia che trattano di stelle e costellazioni

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