Sharpless 101 (Sh2-101) is an emission nebula about 6,000 light years from earth, located in the constellation Cygnus. It is sometimes called the Tulip Nebula because of the flower it resembles.
| Exposure |
• 17¼ hours (103 X 10 minutes) @ -20°C over 6 nights • Dusk flats • Camera position angle: 307° • Full-color subs were combined with narrowband subs ☞ 46 full-color ☞ 28 H-α (red) ☞ 29 O-iii (blue) |
| Processing |
• With PixInsight: ☞ Calibrate, star-align, and integrate subframes ☞ Reduce background noise ☞ Histogram transformation ☞ Shrink stars • Final tweaking in Photoshop CS6 |
| Date and Location |
• 2020: October 3, 5, 6, 7, 8 • Louisa County, Virginia, USA |
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Equipment |
• TMB-130SS APO refractor @ f/7 on an A-P 1200 mount • ZWO ASI-1600MC Pro color camera • Guided with an ST-402 camera on a 60mm f/5 scope • Imaging and autoguiding with MaxIm DL 6.20 • Automated image acquisition with ACP Observatory Control |
Updated May 23, 2023