Deep-sky Imaging and Astro-Tools

Tag: NGC 581

Caldwell 10 and Messier 103, Sep’24

Post author By Thomas Hanrath
Post date 26. September 2024
No Comments on Caldwell 10 and Messier 103, Sep’24

Messier 103 - M103 - NGC 581 - Melotte 8 / Caldwell 10 - C10 - NGC 663 - Melotte 11 / NGC 654 - Melotte 9 / NGC 659 - Melotte 10 // © 2025 · Thomas Hanrath · CC BY-NC-ND 4.0 · no edits · no commercial use

Four open star clusters in Cassiopeia: among others, Caldwell 10 and Messier 103. A truly beautiful frame with simply stunning stars.

Tags C10, Caldwell 10, M103, Melotte 10, Melotte 11, Melotte 8, Melotte 9, Messier 103, NGC 581, NGC 654, NGC 659, NGC 663

Messier 103

Messier 103 · NGC 581 · Melotte 8 · © Thomas Hanrath, CC BY-NC-ND 4.0

M 103 is an open star cluster in the constellation Cassiopeia lying about 7,160 light-years away, and it reaches its annual culmination at astronomical midnight and is best observed mid October.