Ngc5139

[LT_Ng]

Taken during my visit to Rubyvale in April this year.

Photographic data:
Telescope & camera : Vixen ED81SII + modified 100D
Photographic focal length & F-ratio : 625mm F7.7 (@prime focus, no field corrector used)
Total exposure : 12x360s @iso800 RAW
Autoguiding : Vixen AP-DM (dual motor version) + 3cm mini guiding scope + QHY 5LII-M + PHD
Stacking & Calibration : Flat, darks and bias calibrated & stacked in DSS
Processing: Only colour correction and stretching with Level and Curve in PS CSII

Originally, wanted to take total exposure of 2 hours but cloud came into. So, s/n ratio of the final image is still a bit low. See if I can do it again next year.

Thanks for looking.

LT

[LT_Ng]

As emailed by sheeny, my homepage may contain Malware and thanks for editting my post to remove the link. I am very sorry for any potential hazards arisen to our members when clicking into the link. I will fix the problem with my web hosting company.

Thanks for your kind attention.

LT