I observed this object on 16 April 2023 at Alpine, TX using an Obsession 22” UC Dobsonian: Omega Centauri is a very large and bright globular cluster. It is of remarkably uniform brightness over about 70% of its breadth. It does not concentrate towards the core. That is why it is classified as an VIII.
I obtained the calibrated lights frames used to create the final image from Telescope Live. The frames were imaged by the CHI-1-CCD Telescope at the El Sauce Observatory.
Note: Largest and most luminous of all Milky Way GCs. 5 million solar masses. Very different from most other GCs to the extent that it is thought to have originated as the core remnant of a disrupted dwarf galaxy. The stars in the core are so crowded that they are estimated to average only 0.1 light-year away from each other.
Shapley Sawyer Classification: VIII
Distance: 15,788 LY
Type: Halo Globular
Position w.r.t. core of galaxy: Above the disc of the MY and about the same distance from the core as the Sun but to the side of the core.
Any stars resolved: Yes
Undergoing Core Collapse: No
Created with SkySafari 6 Pro.
Comments