Image 1 of 1
M4 & Antares (4in f4.5 with 20Da).jpg
M4 (at right) and NGC 6144 (upper) globular clusters with Antares. Taken with 4-inch AP Traveler apo refractor at f/4.5 with Canon 20Da camera at ISO 800 for stack of 4 x 5 minute exposures. Taken from Coonabarabran, NSW, March 27, 2007.