Summer triangle of stars
Numéro d’image : 11885028
| The three brightest stars in the picture form the so- called Summer Triangle,consisting of Deneb (upper left) in the constellation of Cygnus,Vega (centre right) in Lyra,and Altair (bottom left) in Aquila. The nickname is only appropriate in the northern hemisphere; in the south,the three stars are best seen in winter. Vega is the fifth brightest star in the sky. Deneb,located some 1800 light-years away,is 70,000 times as powerful as our Sun. Altair is only 10 times as luminous as the Sun,but is much closer at a distance of only 16. 6 light-years. 24mm,f/4 | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Sanford, John |
| Taille de l’image : | 3543 px × 5356 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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