MGC891 |
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Photograph information Telescope : LX200 at f 6.3 Film : Fuji Superia 400 Unhyper Exposure : 45min Manual guided Date : 29/7/2000 Location : Greece Island Crete |
Object Information: Spiral Galaxy NGC 891, type Sb, in Andromeda . Spirals have most of their bright stars, gas, and obscuring dust in a thin disk. This disk can be so thin the galaxy appears edge-on like a compact disk seen sideways. The dark band across the middle is a lane of dust which absorbs light. Some of the billions of stars that orbit the center of NGC891, however, appear to be moving too fast to just be traveling in circles. What causes this peculiar motion? One hypothesis is that NGC891 has a large bar across its center -- a bar that would be obvious were we to see this galaxy face-on instead of edge-on. This edge-on spiral galaxy is believed to be very similar to the Milky Way. if we could view the Milky Way from a distance of about 30 million light years it would look something like NGC 891. |
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Last Edit: 08.30.2001 . |