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Acquisition |
Processing |
Comments |
| Date: 21/11/09 & 09/01/10 & 13/01/10 |
DeepSkyStacker |
Name: Thor's Helmet- NGC 2359 - Distance 15,000 Light Years - In the Constellation Canis Major. This is a Galactic reflection + emission nebula.. A Bright Nebula that surrounds and has been blown off by a Wolf-Rayet Star (A blue supergiant star). Their very peculiar spectra show emission lines of a a stellar wind is ejecting matter into space at velocities between 1,000 and 3,000 kilo meters per second, and indicate that an envelope of ejected matter exists around the star. The rate of mass loss by the stellar wind is significant, of the order of 10-4 solar masses per year. Wolf-Rayet stars are often seen surrounded by nebulosities such as NGC 2359. I am not happy with this image, I am struggling to get the image out from the noise without making it look over processed, I will need to work on it in the future.
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| Location: Greenwood WA - Backyard | Stacking Mode: Mosaic | |
| Camera: Canon 20D - LP Filter Removed | Alignment Method: Automatic | |
| Optics: Mead LX200R | Stacking Mode: Mosaic | |
| Exposure: 800ASA -@ 600 + 420+ 300 Sec | RGB BKG Cal: Yes | |
| Total Exposure: 51 Images - 4h 46m. | Per Channel Cal: Yes | |
| Guiding: DSI on Skywatcher ED80. | Method: Median Kappa-Sigma K=2/I=5 | |
| Filter: Astronomik CLS-CCD | Darks: Yes | |
| Focus: Bahtinov Mask | Flat: No | |
| Full Details
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Position in Sky |
PhotoShop CS4 |
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| RA (J2000): 07h 19m | Levels, Colour Balance, Curves, Saturation Scaling, jpeg Conversion. | |
| DEC (J2000): -13* 14 ' | ||
| Constellation: Canis Major | ||
| Distance: 15,000 Light Years |
