Melotte 15
Constellation: Cassiopeia
Melotte 15 (a.k.a Collinder 26) is an open cluster in the Heart nebula (IC 1805 or Sh2-190). Its distance from Earth is about 7500 Ly and is located in the Perseus arm of our galaxy. This radations emanating from this small group of stars drives the intense colours of the larger Heart nebula. Link to interactive sky chart.
Dates:
This image was taken in August and September 2024
Telescope & Mount:
656 14″ Corrected Newtonian on a ASA DDM100 mount.
Imaging:
Camera: PlayerOne Zeus Mono (bin 1×1)
Data:
Nebula:
Ha: 58x300s
O-III: 92x300s
S-II: 88x300s
Stars:
Red: 30x120s
Green: 30x120s
Blue: 30x120s
Total integration time: 22h 50′