SH2-173 - The Phantom of the Opera Nebula
Fri Oct 13 2023
SH2-173, nicknamed the Phantom of the Opera Nebula, is a faint cloud of glowing hydrogen. This is a colorized view built from hydrogen-alpha data. Faint emission nebulae like this are invisible to the eye but reveal their ghostly shapes in a long exposure through the right filters.
About this object
- Type
- Emission Nebula
- Constellation
- Cassiopeia (the Queen)
- Catalogue designations
- Sh2-173
Acquisition
- Antlia 3nm Narrowband H-alpha 36 mm: 144 × 2m (4h 48m)
- Total integration: 4h 48m
Equipment
- Telescope / Lens: Celestron C8
- Camera: ZWO ASI1600MM Pro
- Mount: Celestron CGEM II
- Filters: Antlia 3nm Narrowband H-alpha 36 mm
- Guiding scope: SVBony SV106 60mm Guide Scope
- Guiding camera: ZWO ASI224MC
- Accessories: Celestron 0.63X SCT Reducer (94175), ZWO EFW 7 x 36mm
- Software: Pleiades Astrophoto PixInsight
Astrophotography by David Joyce, AstroDavido.