visible with the naked eye, the M48 open cluster of stars is 23 light
years across and about 1500 light years from Earth. M48 is one of
Messier's few "missing objects" - Its recorded position is off
5 degrees. The true position was found by Oswald Thomas in 1934. North is to the right.
AstroTech AT8RC 8" F8 Ritchey-Chretien with ATFF2 Field Flattener,
Celestron CI-700 Mount
Orion StarShoot Pro V2 one-shot color
QHY5L-IIM through Orion Deluxe OAG, PHD guiding software
(6) 5 min
Nebulosity, PhotoShop CS2
04-18-15, Tierra del Sol, CA. Just a plain ol' open cluster, but when
collimation and guiding are good I just can't resist!