M57
Ring Nebel
Volle Auflösung
11.08.07 / Solingen
Orion-Newton 10" f/4,8 (254/1200mm)
Starlight Xpress MX716 (6,5x4,8mm 752x582Px 8.6x8.3µm)
14x5min HA + 6x5min OIII
