OBJECT INFORMATION

Name/Designation	NGC 4490 (Cocoon Galaxy)
Object Type	Interacting Barred Spiral Galaxy
Constellation	Canes Venatici
Distance	~25 million light-years
Apparent Magnitude	~9.8
Angular Size	~6.3′ (~0.11°)

IMAGING

Date	May 27–28 & 30–31, 2024
Location	Athens, Greece
Frames	453 × 60″ exposures
Integration	7h 33m
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
Accessory	Baader 2″ MPCC Mark III
Guide Scope	Artesky 32mm Mini
Guide Camera	ZWO ASI120MM Mini

SOFTWARE

Acquisition	Astro Photography Tool
Guiding	PHD2 Guiding
Processing	PixInsight
Plugins	RC Astro