NGC 2444 (type S0 pec (Ring A), just above center) and NGC 2445 (type IM pec (Ring B), just below
the center of the frame) form Arp 143 in the constellation Lynx. In the Arp atlas they are in the
class of “Material Emanating from E Galaxies”. Taken Feb 13, 14, 15 and 16, 2013. Imaged with CCD
Lab’s Q285M camera and a Celestron EdgeHD 9.25 at f10, on a Losmandy G11/Gemini mount. The L
subframes were 12 minutes binned 1x1,while the RGB subframes were 4 minutes binned 2x2 resulting
in the following total exposures L:R:G:B (min) = 444:68:68:68. Captured with Nebulosity, calibrated,
sigma combined in Iris with other processing using PixInsight LE and Photoshop CS. North is up.