(NGC 7023- Iris
; M78)
Planetary Nebula M57- Ring
- Object: Planetary Nebula M57- Ring Nebula ( (100% size, 1024x1500)
- Wikipedia: Ring Nebula
- Date&Time : 10.5.2008, 00:12 UT - 01:04 UT
- Optics: Newton 200/860, MPCC, no filter
- Exposure: 30x90s
- Camera: Canon EOS 300D, 1600ISO
- Guiding: Newton 100/600, Philips To UCam Pro
- Processing: SubRAW, Registar, Adobe Photoshop CS3
- Location: Czech Republic, Trhove Sviny
- Condition: +6°C