Messier 52 region
Constellations: Cassiopeia
The open cluster Messier 52 is part of a very bright and beautiful region of nebulosity in the constellation of Cassiopeia.
Date:
This image was taken during many nights between mid-May and July 2022. It consists of two panes, taken with narrowband filters (Hydrogen-α, Oxygen III and Sulfure II).
Telescope & Mount:
Takahashi FSQ-106ED on a Paramount MX+ mount
Imaging:
Camera: ZWO ASI2600MM Pro (bin 1×1)
Data:
Ha:60x240s
Oiii:63x300s
Sii:69x300s
Total integration time: 15h

Messier 52 (NGC 7654) is an open cluster just to the northwest of the Bubble nebula (NGC 7635), part of Sh2-162. The large nebula to its northeast is Sh2-161, and contains the bright nebula NGC 7538.
This large nebula is Sh2-157, the Lobster Claw nebula. The bright nebular spot near the center of the image is LBN 537, also known as Sh2-157a.
Dates:
This image was taken between August and September 2024.
Image 1: Color palette SHO
Image 2: Color palette HSO
Telescope & Mount:
ASA 12n F/3.6 Corrected Newtonian on a Paramount ME mount.
Imaging:
Camera: ZWO ASI2600-MM pro (bin 1×1)
Data:
Ha: 95x300s
O3: 118x300s
S2: 120x300s
Total integration time: 27h 45′