Target: NGC2808 Globular Cluster in Carina
Camera: QHY 8 OSC CCD camera IR/UV filter
Exposure Capture: Maxim DL
Scope: GSO CF RC200
EFR: f/8
Mount: EQ6 Pro
Exposure Setting: Prime focus
Exposures: 10x6min taken 9th April 2010
Seeing: moon not yet risen
Guiding: Orion Starshoot Autoguider using PHD
Focus: Maxim, Bahitov mask
Stacking: DSS 3 darks 10 flats, 10 bias applied
Processing: Processed in CS3 for levels, saturation curves shadow highlights colour balance, noise reduction, unsharp mask, Gradient Exterminator. Flats include taken on benchtop using white paper over lens and bright light
Info: Situated in the Carina
Observation data (J2000 epoch) Constellation Carina Right ascension 9h 12m 2.6s Declination -64° 51′ 46.2″ Apparent magnitude (V) 7.8) NGC 2808 belongs to the Milky Way, and is one of our home galaxy's most massive globular clusters, containing more than a million stars. It is estimated to be 12.5-billion years old. Star Generations
It had been thought that NGC 2808, like typical GC’s, contains only one generation of stars formed simultaneously from the same material. In 2007, a team of astronomers led by Giampaolo Piotto of the University of Padua in Italy investigated Hubble Space Telescope images of NGC 2808 taken in 2005 and 2006 with Hubble's Advanced Camera for Surveys. Unexpectedly, they found that this cluster is composed of three generations of stars, all born within 200 million years of the formation of the cluster.
Magnificent production. NGC 2808 is a Class I globular and is extremely core dense. I can't imagine you will resolve much more in the core area.
I have observed this globular many times but have never noticed the magnitude 10 orange double star nearby. I must look for it next time.
You know, we live at a good time...another few billion years and most globs will be nothing more than piles of dead scrap stars. Little, if no light, at all. Nothing to look at.
