NGC 206, just left of the center, is a large star forming region in one of the outer spiral arms of M31, the Andromeda Galaxy. Also known as OB 78, this stellar association is made up of hot young type O and type B stars that are only 10 to 20 million years old. The brighter members are seen in the center of the image. The stellar association itself is bright enough to be seen in moderately-sized amateur telescopes. Almost all of the brighter stars in the image are foreground stars that are members of our own Milky Way Galaxy that just happen to lie along the same line of sight as NGC 206. The fainter blue stars in NGC 206 are actually blue giants inside of M31 that are resolved at a distance of 2.5 million light-years away. Brighter background areas in the rest of the image are unresolved stars in the spiral arms of M31. Darker areas are obscuring dust lanes in M31 that block the light of stars behind them. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Lodriguss, Gerard |
Bildgröße: | 5108 px × 3388 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |