Total Exposure Time: 4:00 hours L(bin1); RGB(bin2), LRGB 90:50:50:50 / 24 frames of 10 minutes each This image is 1614x1162 pixels Officina Stellare Riccardi-Honders Veloce RH 200 OTA Officina Stellare - http://www.officinastellare.com/products_scheda.php?idProd=15 On my site - http://www.pbase.com/boren/officina_stellare_riccardihonders_veloce_rh_200 Deeper technical informaiton on the Riccardi-Honders design - http://www.telescope-optics.net/honders_camera.htm SBIG STL11000M, AP GTO1200 mount, guided w/PHD NGC 4372 is a globular cluster in the southern constellation of Musca