M13 - Testing OAG+Lodestar with C14 (Geof Lewis)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Great Cluster in Hercules · Hercules globular cluster · M 13 · NGC 6205

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M13 - Testing OAG+Lodestar with C14

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M13 - Testing OAG+Lodestar with C14

These 2 images are test shots for my first guiding attempt with an OAG using a new (pre-owned) Lodestar guide camera. It took a lot to get the Lodestar into focus - I had to add some small extension rings to increase the back focus, and focus with the OAG is just push/pull but I got there in the end. The Lodestar also had hundreds of hot pixels so a bad pixel map created in PHD2 was essential to see what were actually stars...!!

Both images are un-cropped single exposures:

> Vers A - a 5 minute sub calibrated and processed in ImagesPlus and PS(CS2)

> Vers B - a 10 minute sub just see how guiding stood up over that longer duration, hence shot at ISO200 to reduce saturation. The image is an unprocessed JPEG straight off the camera.

Final
Original
B

Messier images

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Status	Advanced success
Started	...
Astrometry.net job	1232175
PixInsight job	LNHWRY1AU0POXI4TWLNZQ6ZN0PV9W9MS
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	16h41m37s.483
RA (top/left)	16h43m17s.915
RA (top/right)	16h40m37s.255
RA (bottom/right)	16h39m57s.311
RA (bottom/left)	16h42m37s.530

Dec (center)	+36°27′47″.44
Dec (top/left)	+36°32′25″.50
Dec (top/right)	+36°44′34″.42
Dec (bottom/right)	+36°23′03″.70
Dec (bottom/left)	+36°10′56″.97

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M13 - Testing OAG+Lodestar with C14

M13 - Testing OAG+Lodestar with C14

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M13 - Testing OAG+Lodestar with C14

M13 - Testing OAG+Lodestar with C14

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