Dolphin Head: First image with TS Hypergraph 8 (Brian Boyle)

Celestial hemisphere: Southern · Constellation: Canis Major (CMa) · Contains: 16 CMa) · 16 omi01 CMa · HD49940 · HD49982 · HD50046 · HD50047 · HD50074 · HD50092 · HD50119 · HD50154 · HD50155 · HD50176 · HD50212 · HD50232 · HD50259 · HD50260 · HD50286 · HD50304 · HD50376 · HD50394 · HD50411 · HD50465 · HD50466 · HD50492 · HD50493 · HD50535 · HD50537 · HD50563 · HD50590 · HD50591 · And 71 more.

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Dolphin Head: First image with TS Hypergraph 8

Revision title: Another reprocessing...

Powered byPixInsight

Dolphin Head: First image with TS Hypergraph 8

Revision title: Another reprocessing...

Thus is my "first light" image with a new telescope; a TS Hypergraph8. There aren't many images taken with this telescope on Astrobin, so when I purchased it a was a little worried that it might not be such a great telescope.

But I was keen to try out a fast Newtonian astrograph, and this was the only one without a massive waiting list [not necessarily a good sign!].

I even thought that, having collimated an RC, I could handle the set-up of a fast f3.2 Newtonian.

How wrong I was.

But thanks to my Astrobin friends, in particular Björn Arnold and Andrea Tasselli, and after about 8 hours collimating on the bench and on the pier, I have finally managed to get the telescope close to collimation. I still have some work to do, including refining tilt issues, but I thought I would post this image of the Dolphin Head as a progress report.

In my eagerness to get some useable, if not brilliant, data from this telescope I forget to take some shorter subs. This might have helped with halo around omi Canis Majoris. In addition much of the Halpha data was compromised by cloud.

However the depth achieved compared favourably to the depth achieved with my RC8 last year and I have a larger field. I do like the juxtaposition of the Dolphin Head against the "galactic coral" on the southern edge of the frame.

Comments and critique more than welcome on this image, particularly since it is "first light". And if anyone has a painless way other than brute force trial and error, I would be delighted to hear.

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Title: Another reprocessing...

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Status	Advanced success
Started	...
Astrometry.net job	6662147
PixInsight job	9FVPBHSEKNFDQNEA49X2ZUZJMP7OS3V5
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	06h54m18s.51
RA (top/left)	06h49m42s.40
RA (top/right)	06h58m30s.40
RA (bottom/right)	06h58m47s.55
RA (bottom/left)	06h50m12s.24

Dec (center)	-23°53′36″.8
Dec (top/left)	-25°21′05″.1
Dec (top/right)	-25°24′35″.1
Dec (bottom/right)	-22°25′53″.7
Dec (bottom/left)	-22°22′16″.9

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Dolphin Head: First image with TS Hypergraph 8

Revision title: Another reprocessing...

Dolphin Head: First image with TS Hypergraph 8

Revision title: Another reprocessing...

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Dolphin Head: First image with TS Hypergraph 8

Revision title: Another reprocessing...

Dolphin Head: First image with TS Hypergraph 8

Revision title: Another reprocessing...

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