M57
Crop 1.5X
|
0bject |
M57 Planetary Nebula (Ring Nebula) in Lyra |
| Date | June 11 - July 10, 2014 |
| Exposure | HαOIIIOIIIRGB 585:150:150:30:30:30 (Composite, cropped, 16.25 hours) |
| Camera | STL11000M with Baadeer (NB) and AstroDon Gen II (RGB) filters (watter assisted cooling) |
| Telescope | ASA 10N f/3.6 on AP900GTO CP3 |
| Guiding | External guide head with 50mm MiniBorg |
| Processing | MaximDL, PhotoshopCS6; GradientXterminator |
| Comments | Moderate seeing over several nights; acquired with CCD Commander |
|
0bject |
M57 Planetary Nebula (Ring Nebula) in Lyra |
| Date | July 27-29, 2010 |
| Exposure | HαRGB 225:10:10:10 (Composite, cropped, magnified 160%) |
| Camera | STL11000M with Astronomik filters (watter assisted cooling) |
| Telescope | ASA 10N f/3.6 on AP900GTO CP3 |
| Guiding | External guide head with 50mm MiniBorg |
| Processing | MaximDL, PhotoshopCS3 ; GradientXterminator |
| Comments | Moderate seeing, high thin clouds; moon just past full |
|
0bject |
M57 Planetary Nebula (Ring Nebula) in Lyra |
| Date | May 31 & June 1, 2009 |
| Exposure | SII Ha OIII 50:50:50 (cropped; various color combinations) |
| Camera | STL11000M with Baader narrow band filters |
| Telescope | ASA 10N f/3.6 on Losmandy G11 with Gemini |
| Guiding | External guide head with E-finder |
| Processing | MaximDL, PhotoshopCS3 |
| Comments | Test run for new Baader filters; focus is soft |
|
0bject |
M57 Planetary Nebula (Ring Nebula) in Lyra |
| Date | July 30 & 31, 2006 |
| Exposure | LRGB 100:15:15:15 (RGB binned 2x2) |
| Camera | ST2000XM with SBIG filters |
| Telescope | Meade 10" SCT @ f/10 on Losmandy G11 w/Gemini |
| Guiding | self-guided |
| Processing | MaximDL, FITS Liberator, PhotoshopCS2, AstroActions |
| Comments | Very warm (85-90º) and humid, moderate seeing |
