WISE 0350-5658

WISE 0350−5658
Immagine artistica di una nana di classe Y
Scoperta2012
ClassificazioneNana bruna
Classe spettraleY1
Distanza dal Sole12.1 anni luce
CostellazioneReticolo
Coordinate
Ascensione retta30h 50m 00,32s
Declinazione-56° 58′ 30,2″
Dati osservativi
Magnitudine app.22,09 e 22,51
Modifica dati su Wikidata · Manuale

WISE J035000.32−565830.2 (abbreviato come WISE 0350−5658) è una nana bruna con spettro di classe Y1, localizzata nella costellazione del Reticolo. Trovandosi a circa 12,1 anni luce di distanza dal sistema solare è uno degli oggetti con queste caratteristiche più vicini alla Terra. Altre nane brune vicine al sistema solare sono: ε Indi Ba and ε Indi Bb a 11,8 anni luce e WISE 1506+7027 a 11,1 anni luce.[1]

Scoperta

WISE 0350−5658 è stata scoperta da J. Davy Kirkpatrick et al. attraverso la missione Wide-field Infrared Survey Explorer (WISE) durata dal dicembre 2009 al febbraio 2011. Nel 2012 pubblicarono un articolo sull'Astrophysical Journal nel quale venivano descritte sette nane brune di tipo spettrale Y scoperte elaborando i dati raccolti da WISE, tra le quali WISE 0350−5658[2].

Distanza

WISE 0350−5658 è una delle più vicine tra le nane brune conosciute: la sua parallasse è di 0,291±0,050 arcsec[3], e corrisponde a una distanza di 11,2+2,3
−1,6 anni luce.

Note

  1. ^ J. Davy Kirkpatrick et al., The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE), su arxiv.org, Cornell University Library, 23 agosto 2011. URL consultato il 16 gennaio 2018.
  2. ^ J. D. Kirkpatrick, C. R. Gelino, M. C. Cushing, G. N. Mace, R. L. Griffith, M. F. Skrutskie, K. A. Marsh, E. L. Wright, P. R. Eisenhardt, I. S. McLean, A. K. Mainzer, A. J. Burgasser, C. G. Tinney, S. Parker e G. Salter, Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function, in Astrophysical Journal, vol. 753, n. 2, 2012, p. 156, Bibcode:2012ApJ...753..156K, DOI:10.1088/0004-637X/753/2/156, arXiv:1205.2122.
  3. ^ Kenneth A. Marsh, Wright, Edward L., Kirkpatrick, J. Davy, Gelino, Christopher R., Cushing, Michael C., Griffith, Roger L., Skrutskie, Michael F. e Eisenhardt, Peter R., Parallaxes and Proper Motions of Ultracool Brown Dwarfs of Spectral Types Y and Late T, in Astrophysical Journal, vol. 762, n. 2, 2013, p. 119, Bibcode:2013ApJ...762..119M, DOI:10.1088/0004-637X/762/2/119, arXiv:1211.6977.

Voci correlate

Le altre sei nane brune la cui scoperta è stata pubblicata nel 2012 da Kirkpatrick et al. contemporaneamente a quella di WISE 0350−5658 sono:

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

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