NGC 4236 (Göran Nilsson)

Celestial hemisphere: Northern · Constellation: Draco (Dra) · Contains: HD104316 · HD104435 · HD104725 · HD104739 · HD105028 · HD105029 · HD105122 · HD105287 · HD106249 · HD106574 · HD106831 · HD107028 · NGC 4034 · NGC 4120 · NGC 4128 · NGC 4236 · NGC 4250

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NGC 4236

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NGC 4236

Dana Patchick has been sending me co-ordinates for blue dwarfs that could indicate possible planetary nebulae. The idea is that my photon-sucking dual-RASA8 rig should be a great tool for finding these faint objects. So far we have had no success, but no one said it should be easy. Here is my latest attempt from Wednesday night. Combined I got 7.3 hours with the RASAs before mist put a stop to it. Unfortunately, there was nothing to be seen around the blue dwarf centrally in the image, but I did catch NGC4236 and a few smaller galaxies.

I am a bit surprised that the galaxy came out so well since the RASA is a wide-field scope, so not much of a hunter for mid-size galazies, especially with a dual-band Ha+Oiii filter (IDAS NBZ) blocking most light.

In any case, I am not giving up, Dana has more candidates for me to aim at, so one night.......

Original
Final
B

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Status	Advanced success
Started	...
Astrometry.net job	6461313
PixInsight job	6DT6DK834X6PQA4637788PVOFOHPKPE2
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h10m33s.88
RA (top/left)	12h22m53s.36
RA (top/right)	12h22m10s.39
RA (bottom/right)	11h56m44s.30
RA (bottom/left)	12h00m18s.97

Dec (center)	+69°56′11″.6
Dec (top/left)	+68°44′46″.4
Dec (top/right)	+71°14′05″.4
Dec (bottom/right)	+71°03′28″.1
Dec (bottom/left)	+68°35′59″.9

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