Wikipedia: Description: Sharpless 101 (Sh 2-101) is a H II region[1] emission nebula located in the constellation Cygnus. It is sometimes also called the Tulip Nebula because it appears to resemble the outline of a tulip when imaged photographically. It was catalogued by astronomer Stewart Sharpless in his 1959 catalog of nebulae. It lies at a distance of about 6,000 light-years (5.7×1016 km; 3.5×1016 mi) from Earth.
Acquisition Details:
| Telescope | Takahashi TOA-130 |
| Optics | Takahashi TOA-645 Flattener |
| Filter | Optolong Ultimate Dual Band |
| Camera | ASI2600MC Pro OSC |
| Integration Time | 4.9 hours |
| Subframes | 59 x 300 seconds |
| Date | September 28, 2025 |
| Location | Carlsbad, California |