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ULAS J224940.13−011236.9

Un article de Wikipédia, l'encyclopédie libre.

Cet article est une ébauche concernant une naine brune.

Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants.

ULAS J224940.13−011236.9
Données d'observation
(époque J2000.0)
Ascension droite 22h 49m 40,13s
Déclinaison −01° 12′ 36,0″
Constellation Verseau

Localisation dans la constellation : Verseau

(Voir situation dans la constellation : Verseau)

Désignations

ULAS J224940.13−011236.9, 2MASS J22494010-0112372, SDSS J224940.11, WISE J224940.14-011236.6[1]

modifier

ULAS J224940.13−011236.9 est une naine brune de type spectral L2,5. Elle se situe à 250 al du Soleil et a été repérée en 2019 grâce à la déction, avec le Next-Generation Transit Survey, d'une éruption d'une intensité 10 fois supérieure à la plus intense des tempêtes solaires connues[2].

Références

[modifier | modifier le code]
  1. ↑ (en) 2MASS J22494010-0112372 -- Low-mass Star sur la base de données Simbad du Centre de données astronomiques de Strasbourg.
  2. ↑ (en) James A G Jackman, Peter J Wheatley, Daniel Bayliss, Matthew R Burleigh et al., « Detection of a giant white-light flare on an L2.5 dwarf with the Next Generation Transit Survey », Monthly Notices of the Royal Astronomical Society: Letters, vol. 485, no 1,‎ (lire en ligne).

Lien externe

[modifier | modifier le code]
  • Ressource relative à l'astronomieVoir et modifier les données sur Wikidata :
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