M57
Messier 57, The Ring Nebula
| Image Type: | High Dynamic Range RRGB, 100% scale |
| Telescope: | 10" Aries f/15 Maksutov-Cassegrain on Astro-Physics 900GTO German Equatorial |
| Effective Focal Length: | approx. 3600mm |
| Resolution: | 0.42"/pixel |
| Accessories: | None |
| CCD: | SBIG ST-4000XCM |
| Exposures: | 30x2 min RGB |
| Filter(s): | IDAS LPS |
| Exposure Date: | 29 June 2010 |
| Location: | Malvazinky Observatiory in Prague, Czech Republic |
| Seeing, FWHM: | 1.6" |
| Processing Software: | MaximDL, PixInsight |
| Image Acquisition Software: | MaximDL, TheSky6, CCDAutoPilot, FocusMax, PinPoint |
| Remarks: | This image uses R channel as Luminosity (RRGB), post-processed using HDR Wavelet Transforms in PixInsight. No color calibration has been done. Calibration only with dark and bias frames. |
| Image Type: | High Dynamic Range Monochrome |
| Telescope: | 210 mm Takahashi Mewlon 210 f/11.5 Dall-Kirkham on Celestron CG5 German Equatorial |
| Effective Focal Length: | 2415 mm |
| Resolution: | 0.68"/pixel |
| Accessories: | Lacerta MGEN Autoguider |
| CCD: | ZWO ASI 1600 MM-C |
| Exposures: | 1000x5 s Monochrome |
| Filter(s): | None |
| Exposure Date: | 12 September 2016 |
| Location: | Malvazinky Observatiory in Prague, Czech Republic |
| Seeing, FWHM: | N/A |
| Processing Software: | PixInsight |
| Image Acquisition Software: | SharpCap |
| Remarks: | ABE, R-L Deconvolution, Histogram Stretch, HDR, ACDNR. No coma corrector. |