ScienceDownEast | ScienceDownEast Astrophotography | Nebulae | NGC 281 Pacman Nebula | NGC 281
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NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20Ã30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184, spanning over a larger area of 40 arcmin. A recent distance from radio parallaxes of water masers at 22 GHz made during 2014 is estimated it lies 2.82±0.20 kpc from us....
Total image time was 44 minutes.
NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an H II region in the northern constellation of Cassiopeia and is part of the Milky Way's Perseus Spiral Arm. This 20Ã30 arcmin sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star, B 1. It collectively forms Sh2-184, spanning over a larger area of 40 arcmin. A recent distance from radio parallaxes of water masers at 22 GHz made during 2014 is estimated it lies 2.82±0.20 kpc from us....
Total image time was 44 minutes.
| Moon Phase | First Quarter | |||||||||||||||
| Camera | Seestar S50 Pro (4K Sony IMX585 sensor) | |||||||||||||||
| Optics | 260 mm focal length, f/5.2, 50 mm aperture | |||||||||||||||
| Filter | LP | |||||||||||||||
| Binning | 1x1 | |||||||||||||||
| Stacking | StackingWizard, 44 frames | |||||||||||||||
| Date | 2026-09-18 | |||||||||||||||
| AstroWizard Processing |
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