OBJECT INFORMATION

Name/Designation	NGC 457 (Owl Cluster)
Object Type	Open Cluster
Constellation	Cassiopeia
Distance	~7,900 light-years
Apparent Magnitude	6.4
Angular Size	~13′ (~0.22°)

IMAGING

Date	November 20, 2021
Location	Athens, Greece
Frames	60 × 60″ exposures
Integration	1h
Camera Settings	Gain 101 | Temperature: 0°C
Bortle Scale	8/9 (City sky)

EQUIPMENT

Telescope	Sky-Watcher Explorer 130PDS
Camera	ZWO ASI533MC Pro
Mount	Sky-Watcher EQ5 Pro
Filter	Baader UV/IR Cut Luminance
Accessory	Baader 2″ MPCC Mark III
Guide Scope	Artesky 32mm Mini
Guide Camera	ZWO ASI120MM Mini

SOFTWARE

Acquisition	Astro Photography Tool & SharpCap
Guiding	PHD2 Guiding
Processing	Adobe Photoshop