Sharpless 2-140
HaRGB VERSION: Red enhanced by addition of about 25% Hydrogren alpha data.
(click on image for larger size & full resolution - about 2Mb):
Image acquisition and processing details:
| Telescope: | Takahashi Epsilon 180, f/2.8. |
| Mount: | Astro-Physics AP1200 German Equatorial Mount. |
| Camera: | SBIG ST-10XME cooled to -20C, internal guiding. All images binned 1x1. |
| Filters, Exposure Times: | HaRGB image total = 17hr 50min. AstroDon Red 200 min (40x5min), Green 225 min (45x5min), Blue 245 min (49x5min). Also 3nm narrowband filter: Ha 400 min (40x10 min). Additional data was obtained but discarded. |
| Dates: | Various 12/07/08-12/10/08 and 8/10/09-9/20/09. |
| Moon Phase: | Various. |
| Location: | Xanadu West Backyard Observatory. |
| Software: | CCD Commander, MaximDL, PinPoint, TheSky, FocusMax, CCDInspector, CCDStack, Adobe Photoshop. |
| Notes: | There is an interesting blue component on the "flat" side of the nebula. |