NGC 3445 (Arp 024, UGC 06021), spiral galaxy type SAB(s)m, in Ursa Major. In the Arp Atlas this galaxy
is in the class of “Spiral Galaxies with One Arm”. Taken April 8, 13 and 19, 2018. Imaged with
Starlight Xpress’ SX-825 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 5 minutes binned 1x1
resulting in the following total exposures L:R:G:B (min) = 360 : 65: 65: 65. Captured with
Nebulosity, calibrated and sigma combined in Iris with other processing using PixInsight LE and
Photoshop CS. North is up.