NGC2371 Planetary Nebula in Gemini Uploaded 1/27/17
This very dim planetary in Gemini is a unique turquoise color, and has not only a nice central star, but "wings" on the sides. Listed at 13.0 magnitude, the object is a big 55" across. Here, I was testing my new 9 point flotation mirror cell for the 12.5" which was just completed to hopefully fix the badly distorted stars I was getting with my old mirror mount. It worked! Stars are now round and crisp - at least as far as the bad seeing tonight would allow. The last few frames I watched in horror as a monster cloud approached, and was just able to finish an hour exposure on this object before the sky went away.
Full Frame view, with the planetary in the center. Select an image size for a larger view: 1290 x 960
Here with a few labels. Ive circled in red the galaxies plotted in Cartes du Ciel which goes to 20th mag, and the green circles are additional objects that are fainter. Select an image size for a larger view: 1290 x 960
2x zoom on center of full frame to show details in ansae. Select an image size for a larger view: 1290 x 960
Instrument: 12.5" f/5 Home made Newtonian Mount: Astrophysics 1200 QMD CCD Camera: SBIG 10XME NABG with Enhanced Water Cooling Guider: Meade DSI Pro w/Lumicon Newt Easy Guider Exposure: RGB = 20:20:20 AstroDon RGB Combine Ratio: 1: 1.05: 1.2 Location: Payson, Arizona, Elevation: 5150 ft. Sky: Seeing FWHM = 5 arcsec (Maxim DL - 10min subframe), Transparency 9/10 Outside Temperature: 35 F CCD Temperature: -20 C Image Processing Tools: Maxim DL: Calibration, deblooming (Starizona Debloomer), aligning, stacking PixInsight: Curves, Deconvolution Photoshop CS2: Curves, Color Correction, Gradient removal (Grad Xterminator), Cleanup HOME GALAXIES EMISSION NEBS REFLECTION NEBS COMETS GLOBULARS OPEN CLUST PLANETARIES LINKS