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| Object | NGC 3293- The Gem cluster & NGC 3324- The Gabriela Mistral Nebula |
| Info |
NGC 3293, the blue open star cluster to the top of the page, is located north west on the famous Carina Nebula. The extension of the emission nebulosity is part of NGC 3324 (shown towards the bottom left), being subsequently part of the larger Gun 30 complex that feeds back into the Carina Nebula and Keyhole. This magnificent open cluster is very reminiscent of the Jewel Box cluster in Crux. It appears that this cluster is located at a similar distance and direction as the giant molecular cloud Sodroski 62. It is listed that there are 16 ionising B-class stars as probable members, the hottest of which is the B0 Ia ,supergiant HD 91969, at a distance of 2471 parsecs and an age of 8.7 million years. NGC 3324- is affectionately know
as The Gabriela Mistral nebula. A giant, cavernous gas cavity carved out
by intense UV radiaiton and stellar winds from young hot white stars. The
small open star cluster within consists of 20 O- and B-type stars.
This image reveals well defined dark towers of cool gas and dust that rise
above the glowing wall of gas. The dense gas at the top resists the
blistering ultraviolet radiation from the |
| Date | Ha-15 /01/ 11 :Lum- & RGB 5/ 01/ 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: 40' Ha: 48' R:20' G:20' B:20' [Ha 3' sub exposures & LRGB 2'sub exposures all unbinned] No bias or flat fields taken. |
| Guiding | ST80 refractor F5 with a Starlight Xpress HX516 CCD. Mounted via a side by side accessory plate. |
| Filters | Astronomik typeII anti halo Ha (12nM) LRGB 2" filter set |
| Notes/ Conditions |
Notes- Due to the mute representation in the Red channel, I took a series of Ha which I then layered to the red channel to accentuate the emission nebula and surrounding area. |