|Object||NGC4038- 9- The Antennae|
NGC 4038 and NGC 4039 are 2 'peculiar' spiral galaxies colliding together. They are known as the Antennae due to both their long tails. The object is 11 magnitude and lies in the constellation of Corvus near the border with Crater. It is one of the closest pairs of galaxies influencing each other. It's estimated distance is around 90 million L.y.
|Date||Lum-14th / RGB 23rd / 1/ 07|
|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 a Mel Bartels Goto Control System with Vexta PK264m-01b motors with a pulley and belt system|
|Camera (CCD)||Starlight Xpress HX916 monochrome with Atik manual filter wheel.|
|Exposures||L: 70' R:18' G:18' B:18' [1' sub exposures all unbinned] No dark frames removed. Extinction factors applied .|
|Filters||Astronomik typeII clr rgb filters|
Conditions- Taking the lum conditions were very good. Transparency allowed me to push sharpening to the object. Taking the colour channels the seeing was poor to average due to the wind buffetting things around and the transparency average. This area of sky gives me quite severe gradients due to the brightness of the Milky Way over head.
Gradients were removed by PixInsight Le's Background Extraction routine.