MarkLeica 8x20; Nikon Action 7x35; Vixen Apex Pro 8x42; Orion 15x63; Docter Nobilem 15x60WO Megrez II 80 FD / APM 107mm f/6.5 / Mewlon 210 on DM-6 + Berlebach Planet
Takahashi TS-65, FC-50 & EM-10 mount, Borg 100, C8, Various Vixens
Astronomy educator/Sidewalk astronomer
Owner of Astronomy Delight franchise
18 inch f4.42 Dob on eq platform w ST120 f/5 finder
12 inch Zhumell Dob
8 inch f/6.9 home made Dob with Seevers optics
William Optics red 10th Anniversary 80mm FD
C8 XLT on Vixen GPDX
26lb eyepiece box
Cernan Space Center astronomer
Member of Northwest Suburban Astronomers
Quote:If it's just a Keplerian calculation based on the current orbital parameters, it can't possibly be correct.
For astronomical graphics, including monthly wallpaper calendar, visit: http://www.CurtRenz.com/astronomical
Quote:The plots are all over the place. The Arlington position for 21:00 is 14 45 39, 82 37 17. NASA put's my Bloomington at 12 03 51, +42 32 and CDC puts it as 15 37 31, 84 11 51.
Quote:Here is the animation I made from 100 images each are 10sec binned 1x1.http://youtu.be/_kQivMIggwg