14" Strut; 10"XT; 102ES; 22 in Process; 3.5,5,7,10,14,20mm Pentax XW; 17.3 & 12mm Delos; 27mm Panoptic; 20&24mm ES 68; 24mm ES 82; 30mm ES 82; 6&10mm BCO;
-EricParks Astrolight EQ6 (6" f/6 Newt)10x50 Bushnell Binoculars
Quote:Abell79 PK102-02.1 11/11/2007 22:46 UT; Pickering 5, NELM 5.5, SQM 20.7406mm SCT @ 170x, OIIIFirst attempt was at 22:46, when transparency was poor (NELM 5; SQM 20.4). PN was *extremely* difficult at 175x with OIII -- holdable about 50% of the time but only for seconds at a time in averted and sometimes difficult to reacquire -- and completely invisible without filtration and at other magnifications.I went back at about 23:45 when transparency had improved (NELM 5.5, SQM 20.7), and the PN was a bit easier -- holdable perhaps 75% of the time, and easier to reacquire. No shape, orientation or structure could be discerned.
Quote:If it were so challenging an object in a 16-inch scope, I can't imagine seeing it with my biggest scope - a "puny" 6-inch refractor.
Mark Seibold, Artist-Photographer-University Instructor-Lecturer, Record holder for most sketch awards and un-broken record over the astro-photographers for over five years