NGC 2477 and NGC 2452 (right) in Puppis. Taken with 4-inch AP Traveler scope at f/4.5 with Canon 20Da camera, at ISO800 for 4 x 2 minute exposures in moonliht, March 26, 2007 at Coonabarabran, NSW, Australia.
Contrasting open star clusters NGC 2477 (dense and in centre) and NGC 2451 (loose and below centre) in Puppis. This is a stack of five 2-minute exposures with the 135mm L-series Canon telephoto lens at f/2.8 and Canon 7D at ISO 1250. This was taken from Atacama Lodge in Chile, May 2011. The field of view simulates a binocular field (roughly 7°).
The contrasting open star clusters in Puppis: NGC 2477, the rich condensed cluster at left, and NGC 2451, the loose and sparse but bright open cluster at right. It has a prominent yellow star amid the blue stars. This is with the Borg 77mm astrographic apo refractor (330mm focal length) at f/4.3 for a stack of 5 x 8 minut exposures with the filter-modified Canon 5D Mark II at ISO 800.
