M 101 (Messier 101)
Pinwheel Galaxy M 101 (Messier 101) ....................................................... - Telescope : GSO 10 inch RC - Corrector : ADT HD-58RC - Camera : QHY 268M - Mount : RaunbowAstro RST-300 - Tripod : Pier - Guide Telescope : Mizar 80mm(f/6) - Guide Camera : ZWO ASI 174mm - Filter : Baader G - Exposure : 300s x 20 shot - Date/Time : Apr. 28. 2023./ 03:15~ - Location : SOAO, South Korea -..