|Object||Corona Austalis Nebula|
Corona Australis Nebula, part there of, is located in the southern constellation Corona Austalis. This image depicting the area/ reflection nebulosity is charged by the light given off from the young star R Coronae Australis (partly shrouded by the dust). Classified as a Herbig Ae/Be pre-main sequence star, having 10 times the mass of our own sun. The greater molecular complex continues out from this 44x44 arc minute image. It is believed to be one of the closest star forming regions to us situated around 500 l.y. away. The globular cluster to the R/H top corner is NGC 6726.
|Date||Lum-6 & 9/ 7/ 10 & RGB 11/ 6/ 10|
|Location||BayTop Observatory- Streaky Bay South Australia|
|Instrument||Home built 10" Newtonian (Bob Royce primary) and an Antares 1/20th wave secondary with Televue Paracorr coma corrector. System working @ f4.6 (native F4/ 1016 FL) 1.315 arcsec/pixel- FOV 44.6x44.6|
|Mount||Celestron CI700 controlled by the SiTech servo Goto Control System with Pittman 8000 series motors. Pulley and belt system|
|Camera (CCD)||Starlight Xpress SXVR-H16 monochrome with Starlight Xpress USB filter wheel.|
|Exposures||L: 192' R:36' G:36' B:36' [4' sub exposures all unbinned] All channels bias and flat fielded.|
|Guiding||ST80 refractor F5 with a Starlight Xpress HX516 CCD. Mounted via a side by side accessory plate.|
|Filters||Astronomik typeII L RGB filter set|
Notes- Have been testing the optical system with the new Paracorr coma corrector as well as square the CCD face of my camera to the imaging train. 20% vignetting with using 1 1/4" filters has caused issues with good.Flat fielding to the rgb channels. Am at present waiting for new 48mm Astronomik filter set to arrive.