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M1 - The Crab Nebula (imaged from Las Cruces, NM) |
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Object Information Imaging Details |
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Records from the Sung Dynasty show that on July 4, 1054, a "guest star" suddenly appeared Southeast of Aldebaran. The 'star' was reportedly visible in daylight for several days. It gradually faded becoming invisible to the naked eye within about 2 years. We now know this guest star to be the light from a supernova explosion which occured about 5600 light-years away in the constellation Taurus. The residual, expanding gas and dust are known as the Crab Nebula. The nebula was first reported by John Bevis in 1731. 27 years later, Charles Messier independently observed and cataloged the object as Messier-1. Through a modest-sized telescope, the Crab Nebula appears as a faint smudge about 1 degree SW of 3rd magnitude zeta Tauri. Use of an OIII filter will help to show some structure. This image was taken from my driveway in suburban Las Cruces. Transparency was excellent; seeing was good. Clicking the above image will bring up a higher resolution image. |
Telescope: |
Celestron NexStar GPS 11" |
Camera: |
Canon 300D (type 1 modified) | |
Filter(s): |
IDAS LPS for color images; Baader 7nm Ha filter for Ha images. | |
Misc. Optics: |
Giant Easy Guider (f/5) | |
Exposures: |
Color - 45 x 2.5 minutes @ ISO 800. Ha - 24 x 5 minutes @ ISO 800. | |
Guiding: |
Through GEG (ToUCam / GuideDog) | |
Processing: |
Images converted to tifs with Photoshop CS3, then aligned and stacked in Nebulosity. Curves/levels adjustments ith Photoshop CS3. Noel Carboni's Astronomy Tools and Noise Ninja also used. | |
Enchanted Skies - Astrophotography by Rich Richins (all images copyright, Rich Richins