Target:  M 51 (NGC 5194, Whirlpool Galaxy, spiral galaxy) and NGC 5195 (irregular galaxy) in Canis Venatici<br /> <br /> Distance from Earth:  37 million light-years<br /> <br /> Image FOV:  46 x 31 arcmins<br /> <br /> Telescope: Takahashi TOA-130 (f/6.0) for Lum data and PlaneWave CDK 20 (f/4.5) for RGB data<br /> <br /> Camera: Starlight Xpress SXVR-H16 for Lum data and FLI ProLine PL6303E for RGB data<br /> <br /> Images: Lum data captured at an image scale of 1.96 arcsec/pixel (binned 1x1); RGB data captured at an image scale of 1.92 arcsec/pixel (binned 2x2); 180 sec Lum subexposures and 300 sec RGB subexposures; 462 minutes Lum  on Mar-May 2012; 45 minutes R, 55 minutes G and 40 min B on Mar 13, 14, 2013 for RGB data; total exposure time of 602 minutes<br /> <br /> Processing: MaxIm DL 5.18, CCDStack 1.0.7, Registar 1.0 and Photoshop CS3 with GradientXTerminator, Noise Ninja and StarSpikes Pro 2.0, final image scale 1.96 arcsec/pixel, image cropped
{"Image XResolution": "3433", "Image YResolution": "3433", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop CS3 Windows", "Image DateTime": "2013:03:14 20:39:00", "Image YCbCrPositioning": "Centered", "Image ExifOffset": "162", "EXIF ExifVersion": "0230", "EXIF ComponentsConfiguration": "YCbCr", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "sRGB"}