M 70 (NGC 6681, GCL 101) Globular Cluster in Sagittarius
Located at: RA 18 hours 43 minutes 13 seconds, Dec -32 degrees 17 minutes 31 seconds
Size: 8.0' Magnitude: 7.8 Class: 5
North is up
West to the right
14.5" f5 Newtonian reflector
Miranda Laborec 35mm camera, ST4 guided, hypered Kodak Technical Pan 2415 film, 42 F outside temp
No filter, 60 minutes, 08/26/2000
D-19, 7.0 minutes @ 69F, negative scanned with Polaroid SprintScan 4000 (4000 dpi), scan is a crop from 35mm negative, scan processed in Photoshop CS5.1
Mt Pinos, CA
|Notes:||This is one of the Messier objects not currently 'visible' from
my Thousand Oaks observatory ... In an effort to
'fill in' my Messier images page, I will post what film images I have.
My film scanner is not presently hooked up, so I am using scans made for
my old film website from the early 2000's.
Most of the film scans from the 14.5" f5 Newtonian reflector were centered on the object of interest, and were generally scanned to file as a 2000 x 2000 pixel crop of the 35mm negative.
Reduced in Photoshop to 1024 pixels, and saved under "Save for Web & Devices".
From the NGC / IC Project:Contemporary Visual Observation(s) for NGC 6681
NGC 6681 = M70 = E458-SC3 18 43 12.6 -32 17 31 V = 8.1; Size 7.8 17.5" (7/14/99): At 220x, M70 displays a 3' round halo and is very well concentrated to a small bright core and intense nucleus. A string of three brighter stars extends to the N from the NE end and a number of stars are resolved in the halo. At 280x, ~15-20 faint stars are resolved in the halo and at the edge of the core, particularly on the south side over a very lively background. 13": very small bright core, faint stars are resolved at the edges. A bright string of stars at the following side trails to the NNE. 8": few faint stars resolved at high power, bright core. The halo appears flattened on the E side. - by Steve Gottlieb