Object  NGC 2997 Galaxy
Info

NGC 2997- is located in the southern constellation of Antila. It is an 11th magnitude spiral galaxy reminiscent of the M83 galaxy. It has a very low surface brightness. Bright red knots of ionised hydrogen  scattered through the spiral arms are birthing millions of hot, young, blue stars, their light, as can be seen, is extending throughout the arms. The core of this beautiful galaxy is showing that there are a large concentration of much older, yellow red stars.

NOTE: This version is a combination of old Luminance I took back in '07, combined with this recent set of Luminance 2010 The star refraction visible on the brighter stars in this enhanced version is due to the under sized secondary I had installed in my Newtonian scope at the time 2007. See previous rendition of this object from 07

Date 15/01/07, 18th & 20th(lum) & 20th(rgb)/ 1/ 2010
Location BayTop Observatory- Streaky Bay South Australia
Instrument Home built 10" Newtonian (Bob Royce primary) with MPCC coma corrector. System working @ native f4/ 1016 FL  1.35 arcsec/pixel- FOV  23.3x29.4
Mount Celestron CI700 controlled by the SiTech servo Goto Control System with Pittman 8000 series motors. Pulley and belt system
Camera (CCD) Starlight Xpress HX916 monochrome with Atik manual filter wheel.
Exposures  Lum: {(15/01/07 65 @1' subs) combined to Lum 78@ 3' subs'}   R:24' G:24" B:24" [all 3' sub exposures all unbinned]     No dark frames removed.
Guiding Starlight Xpress Hx516 & ED80 refractor. Pulse guided via ASCOM.
Filters Astronomik clear/ RGB Type II Filter set
Notes/ Conditions

 Conditions-As is per typical this time of the year here, seeing and transparency are a little poor. But it was still good to get out. I've found in the past when imaging this object, there is always a gradient to remove.. perhaps it is the area of sky where the milky way is over head. Needed much more data to really do this justice, but weather, moon and time are an obstacle.  Gradients removed by PixInsight Le's back ground extraction routine.