The open star cluster NGC 188, in Cepheus, one of the oldest such objects known, with an estimated age of 9 billion years. NGC 188 has lasted so long as it is well above the plane of the Galaxy near the North Celestial Pole, and so free of the disruptive tidal effects of the Milky Way. This is a stack of 6 x 4-minute exposures with the AM 106mm refractor with the Hotech field flattener for f/6 and Canon 6D MkII at ISO 1600. Star glows added with Luminar and diffraction spikes added with Astronomy Tools
Large galaxy NGC 263 and globular cluster NGC 288, in Sculptor near the South Galactic Pole in an image with a 135mm telephoto lens to simulate the field of binoculars. Taken from Coonabarabran, Australia, December 16, 2012. This is a stack of 5 x 4 minute exposures at ISO 800 and f/2.8 with Canon 5D MkII.
The Silver Coin Galaxy, NGC 253, in Sculptor with globular cluster NGC 288 near South Galactic Pole. Taken from Timor Cottage, Coonabarabran, NSW, Australia, December 12, 2010. This is a stack of 4 x 8 minute exposures at ISO 1600 with Canon 5D MkII camera on 105mm Astro-Physics Traveler apo refractor at f/5.8 with 6x7 field flattener. Taken under partly moonlit skies and with object getting low in west.
