Sh2-157 in HAlpha RGB (click to enlarge)
Sh2-157 in HAlpha (click to enlarge)
Objects: Sh2-157 is a HII region in the constellation of Cassiopeia.
Constellation: Cassiopeia
Telescope and camera: Newton 400mm, f 2.5, Focal length 1020 mm, ASA 3" Reducer 0,73x, ASI 6200MM, 7x Filterwheel
Mount: ASA DDM 85, Software: Autoslew V5.1, Sequence V9
Exposure: RGB each 9 x 4 min bin 2x2, H-Alpha 26 x 6 min bin 2x2
Date and Conditions: Jan 12 2025 HAlpha, Jan 19 2025 RGB
Software used: acquisition: Maxim DL 5, Stacking: DeepSkyStacker 3.3.2, Processing: Adobe Photoshop CS6, PixInsight 1.8.9