|Object||NGC 6559 & IC1274/ 1275 (top)|
NGC 6559 (bottom) is located in the constellation of Sagittarius. It is probably associated with the better known M8 & M20 nebula complex, but separated by dark dust lanes. The over all red hue is due to glowing hydrogen gas energised by the radiation of hot young stars. The blue regions (in both Ngc 6559 & IC 1274/5) are from dust reflected starlight. The dust is also evident by the many odd shaped dark lanes and isolated patches. It is approximately 5,000 L.y. away.
|Date||Lum- 6/ 06/ 11 & RGB 24 / 06/ 11|
|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: 104' R:48' G:48' B:48' (4min sub exposures all unbinned) Flat field and bias subtracted.|
|Guiding||ST80 refractor F5 with a Starlight Xpress HX516 CCD. Mounted via a side by side accessory plate.|
|Filters||Astronomik typeII anti halo L (clear) RGB 2" filter set|
Conditions- Average to poor seeing and transparency when taking the lum with very dewy conditions. When taking the colour the night had very good seeing and no dew.