Copyright 2012 Allan Hall, ALL RIGHTS RESERVED
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| Catalog Number: | M101, NGC5458 |
| Common Name: | Pinwheel Galaxy |
| Date Taken: | 12/29/2011 |
| Location: | Sam Houston State University Observatory 30.810924° N 95.434134° W 233 ft |
| Telescope Used: | Orion Premium 110mm ED APO Refractor |
| Barlow/Eyepiece/Filter: | Baader 2" Moon & SkyGlow Filter, HoTech 2" Field Flattener |
| Camera: | Nikon D7000 unmodded |
| Settings: | 600sec ISO800 |
| Lights: | 15 |
| Darks: | 25 |
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Flats: |
0 |
| Bias: | 0 |
| Final Resolution: | 3253x2602 |
| Notes: | Laying some 21,000,000 light years away in the constellation Ursa Major is the Pinwheel Galaxy, a face on spiral galaxy. This galaxy may be far away but we can see it so well because it is over 165,000 light years across and contains a mass roughly 100 billion times the size of our sun. Note that the top and bottom of the galaxy are not the same, we think this is because in the not too distant past it came very close to another galaxy and the gravitational forces between the two caused the distortions. |
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Copyright 2012 Allan Hall, ALL RIGHTS RESERVED |
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