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M57
| Type | Planetary Nebula | Date | 2009-06-24 22:00:00 | Constellation | Lyra | Distance | 2300ly | Magnitude | 9.0 | Picture diagonal width | 14 ' | Site | Gieres, 38, France (MPC:B83) | Instrument | Newton + Barlow 2X | Diameter | 200 mm | Resulting focale | 2000 mm | Mount | Atlas EQ G | Exposures | 7x5mn | Total exposure | 35mn | Autoguide | Yes | Sensor Temp. | -10 °C | Camera | SBIG ST7-XME | Sensor | CCD | Sensor size | 4.6x6.9 mm2 | Sensor pixels | 765x510 | Binning | no | Resize | 1.00 | Resulting sampling | 0.93 "/pix | Filters | Astronomik L | Record Type | FIT | Processing | Iris(-dark,/flat,add,ddp) | Sky transparency | mag<4 | Remarks | - |
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