M51 THE WHIRLPOOL GALAXY
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M51 THE WHIRLPOOL GALAXY
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| Processing Data: | Object Info: |
| Negatives - March 1997 | The Whirlpool Galaxy shines at Mag. 8.4 in the constellation Canes Venatici and it located near the end star (Eta Ursa Majoris), the Big Dipper. It was the first Galaxy to be visually noted to have a spiral structure. It is a good visual location type of object, and although it is seen face on, it's narrow field makes for a smaller photographic object in less then longer focal length instruments. However, this emulsion photographic detriment, also makes for this as a good object for CCD imaging with their typically smaller imaging areas, but sensitive detectors. |
| Meade 5" ED Refractor F/9 | |
| Manual Guiding | |
| Pentax K1000 Body | |
| Kodak PJM Multispeed, Unhypered | |
| 1 x 60 Min. Exposure | |
| Image Stacking in Picture Window | |
| Digital Enhanced Curves and AV in Photoshop | |
| Processing Info:
Basic Anti-vignetting and Curving used to maximum extent. No other
processing performed.
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| Object Details Courtesy Burnham's Celestial Handbook, Robert Burnham, Jr. (1978 Dover Publications) | |