by Richard Reynolds
Rosette Nebula (Caldwell 49) and surrounding hydrogen-alpha nebulosity
Telescope：Askar FRA300 Pro
Camera：ZWO ASI2600MC Pro
Filter：Askar ColorMagic Duo Narrow Band 3nm 2"
Accessory：Askar 0.8x Reducer for APO103
Time of exposure：10h 45′
