austriker/Tony/NGC 7293 April 4, 2012/in User Gallery /by liyun NGC 7293 photographer: austriker/Tony, 20 x 4 minute, ISO 800 , 2″ UHC-S filter. Meade 10″LX200R fl=2500mm, CMOS temperature: 4℃(39.2˚F), ASTRO 350D+EXcooler, Brisbane, Australia. http://www.centralds.net/cam/wp-content/uploads/2012/04/0helix_1.jpg 427 647 liyun http://www.centralds.net/cam/wp-content/uploads/2020/02/c-logo5.png liyun2012-04-04 06:27:232012-04-10 01:06:46austriker/Tony/NGC 7293