Taken 29-Aug-12
Visitors 137

17 of 26 photos
Photo Info

Dimensions3254 x 2436
Original file size949 KB
Image typeJPEG
Color spaceUncalibrated
SH 2-129

SH 2-129

Other Names: The "Flying Bat" Nebula
Optics: Borg Astrograph 101ED at f/4.1
Mount: Atlas EQG using The Sky6 and EQMOD
Camera: QSI 583WS
Filters: Astrodon Ha 3nm
Exposure: 405 Mins, 6.75 hours [81 x 300s] Ha
Accessories: Auto guided with Borg 45ED and Orion Starshoot Auto guider using PHD
Location: Cypress Hills, SK & Calgary, AB
Date: August 18th, 25th & 26th
Notes: Processing: Image acquisition with Maxim DL Pro. using MaxPilote. Image calibration, align, and combine in Maxim DL Pro. Levels, curves, crop and resize in Photoshop.
Calibrated w/25 Darks, 40 Bias, 10 Flats using light box, CCD temperature was -20C & -15C. Image was taken over multiple nights from the dark sky preserve in Cypress Hills Sk, and from my backyard in Calgary.

Seldom imaged, Sharpless 2-129 is a very faint emission nebula lying 2.5° SSW of Alpha Cephei (Alderamin) and about 4.5° NW of its more often photographed neighbor IC 1396. In spite of the fact that the above image has a total exposure time of almost 7 hours, this nebula is only faintly recorded, attesting to its elusive qualities. This is why I required so much data to bring out the details. It is the longest I have recorded a single image to date.