A star that should not exist

At the centre of this picture is a very unremarkable looking faint star, too faint to be seen through all but the largest amateur telescopes. This ancient star, in the constellation of Leo (The Lion), is called SDSS J102915+172927 and has been found to have the lowest amount of elements heavier than helium of all stars yet studied. It has a mass smaller than that of the Sun and is probably more than 13 billion years old.

Crediti:

ESO/Digitized Sky Survey 2

A proposito dell'immagine

Identificazione:eso1132a
Tipo:Osservazione
Data di pubblicazione:Mercoledì 31 Agosto 2011 19:00
Notizie relative:eso1132
Dimensione:929 x 929 px

A proposito delll'oggetto

Nome:SDSS J102915+172927
Tipo:Milky Way : Star
Constellation:Leo
Categoria:Stars

Formati delle immagini

JPEG grande
132,9 KB

Coordinate

Position (RA):10 29 14.07
Position (Dec):17° 29' 12.80"
Field of view:15.59 x 15.59 arcminutes
Orientazione:Il Nord è a 1.6° a destra della verticale

Colori e filtri

BandaTelescopio
Ottico
B
Digitized Sky Survey 2
Ottico
Pseudogreen (B+R)
Digitized Sky Survey 2
Ottico
R
Digitized Sky Survey 2