심심풀이 재보정입니다.
M81에 Ha를 입히는 게 쉽지 않네요.
M81 Bode's Galaxy 큰곰자리 보데은하
2022. 1.27~29, 2.4~5 Seoul Astronomy Club Observatory, Hongcheon, KOREA
GSO RC8 (F8) / Rainbow Astro RST-135E / ZWO ASI294MM Pro (-20°C)
HERCULES S8239 OAG / ZWO ASI290MM Mini / / ZWO ASIAIR PRO, ASIAIR Plus
Optolong L / 2x2 bin / gain 120 / 300.0 sec x 76 / dark 50
Optolong RGB / 2x2 bin / gain 120 / 300.0 sec x 58, 64, 55 each / dark 50
Orion H-Alpha (7nm) / 2x2 bin / gain 200 / 300.0 sec x 44 / dark 50
DeepSkyStacker, PixInsight, Photoshop
