SH2-170 - The Little Rosette Nebula
Fri Oct 24 2025
This one has been in progress for quite awhile and riddled with issues for some reason. I lost about a nights worth of data due to some focusing issues after a meridian flip but I’m going to go ahead and call this one complete for now and move on to another project once the clouds go away. I intended to go a little deeper on the Ha integration but I’m ready to wrap this one up.
About this object
- Type
- Emission Nebula
- Constellation
- Cassiopeia (the Queen)
- Catalogue designations
- Sh2-170
The Little Rosette Nebula is an emission nebula in the constellation Cassiopeia (the Queen).
Acquisition
- Antlia 3nm Narrowband H-alpha 36 mm: 133 × 3m (6h 39m)
- Antlia V-Pro Red 36 mm: 120 × 30s (1h 0m)
- Antlia V-Pro Green 36 mm: 120 × 30s (1h 0m)
- Antlia V-Pro Blue 36 mm: 120 × 30s (1h 0m)
- Total integration: 9h 39m
Equipment
- Telescope / Lens: Celestron C8
- Camera: ZWO ASI2600MM Pro
- Mount: Celestron CGEM II
- Filters: Antlia 3nm Narrowband H-alpha 36 mm, Antlia V-Pro Blue 36 mm, Antlia V-Pro Green 36 mm, Antlia V-Pro Red 36 mm
- Guiding scope: SVBony SV106 60mm Guide Scope
- Guiding camera: ZWO ASI174MM Mini
- Accessories: Celestron 0.63X SCT Reducer (94175), ZWO EFW 7 x 36mm
- Software: Pleiades Astrophoto PixInsight
Astrophotography by David Joyce, AstroDavido.