Featured wallpaper
Wallpaper author:
Antoine Grelin
15 Jul 2026
Double Cluster in Perseus with HA (NGC 869 and NGC 884)
The Double Cluster in Perseus in RGB+HA to show the rich Hydrogen Alpha background.
Dataset author
Antoine Grelin
T-31
Other wallpapers
View all
Type of target
............................................................................................................................
Globular Cluster
Camera
............................................................................................................................
QHY600M
Target coordinates
............................................................................................................................
RA 02 18 57.8 Dec 57 08 02
Hemisphere
............................................................................................................................
Northern
Telescope location
............................................................................................................................
United States of America
Celestial objects
............................................................................................................................
NGC 869, NGC 884
Transient event
............................................................................................................................
No
Observed on
............................................................................................................................
31 Oct 2022 - 29 Nov 2022
Filter
Avg Exp (s)
Total Exposure
Subframes
Red
60
50m
50
Green
60
49m
49
Blue
60
50m
50
Halpha
600
18h40m
112
Double Cluster in Perseus with HA (NGC 869 and NGC 884)
Subscribe to Obtain This Dataset