|Object||M16- The Eagle Nebula|
M16/ Ngc 6611- is located in the constellation of Serpens. Also known as the Star Queen nebula, made famous by the Hubble heritage image, "Pillars of creation". The actual 'Pillar' is a dark nebula, these extremely cold dark dust formations are consistently found within star formation areas rich in hydrogen, like the horse Head nebula. The light of the nebulosity is made up of excited HII gas where its ions have been excited from surrounding stars within the nebula. Typically, the open cluster at it's heart would be contributing to much of this. It consists of around 60 stars of 8th mag., these are hot giants of spectral class O & B, born less than 1 million years ago. The nebula itself was named The Eagle nebula from its shape shown in wider field images. M16 lies 8000 l.y. away.
|Date||Ha-24/ 6/ 07 & 8th /7/ 07 and RGB data 16/ 7/ 07|
|Location||BayTop Observatory- Streaky Bay South Australia|
|Instrument||Home built 10" Newtonian (Bob Royce primary) and an Antares 1/20th wave secondary 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 CCD with Atik manual filter wheel.|
|Exposures||Ha: 117' R:24' G:24' B:24' [3' sub exposures all unbinned] No dark frames removed.|
|Guiding||Orion 80ED refractor F7.5 with a Starlight Xpress HX516 CCD. Mounted via a side by side accessory plate.|
|Filters||Astronomik typeII Ha 13nM & RGB filter set|
Conditions-As one can see by the dates, things have been rather poor this winter for reasonable skies. I've been finding holes in the clouds to get some images down. This image I only combined the Ha to the RGB and reduced the rgb's stars size to accommodate the Ha data..