Andromeda Galaxy

3 hours exposure under the Bortle Class 4 sky

 

2019. 10. 8. 21:30 ~

Optics: FS60CB with Flattener (370mm ƒ/6.2)

Filter: Optolong L-Pro filter (Deo-Tech OWL filter adapter)

Mount: Toast-Pro2

Exposure: Sony A7s (modified) ISO 8000 x 30s x 290subs

60 dark frames

30 flat frames

100 bias frames

Done