SH2-240 (Mike Hamende)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: 125 Tau · 136 Tau · LBN 822 · LBN 826 · LBN 827 · NGC 1996 · The star 125 Tau · The star 136 Tau

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SH2-240

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SH2-240

I'll just have to call this a work in progress. I knew this target would be difficult but it was beyond what I had anticipated. I had to push a bit more than the data would allow just to get this far. Oiii is essentially nonexistent in 5 minute subs, next year I'll start with 10 minute subs and try to double the total integration time for Oiii.

When I started the project I wanted to see if Sii would add anything and while the signal is strong the structure is essentially identical to Ha. Using the Foraxx dynamic SHO combination it comes out looking identical to HOO but with a bit more varied star color.

Original
Final
B

B

Description: Took another look at the data. Reintegrated everything and also tried local normalization. I certainly left a lot on the table compared to my first attempt. There are even some faint Ha structures in the background I did not notice before.

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Status	Advanced success
Started	...
Astrometry.net job	6905237
PixInsight job	ZPBFRJ0XLVSQEY11SDHXLKA1FP1N3884
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	05h43m15s.73
RA (top/left)	05h58m08s.38
RA (top/right)	05h28m43s.88
RA (bottom/right)	05h28m57s.64
RA (bottom/left)	05h57m06s.50

Dec (center)	+28°05′08″.7
Dec (top/left)	+30°20′55″.5
Dec (top/right)	+30°28′42″.7
Dec (bottom/right)	+25°42′59″.3
Dec (bottom/left)	+25°36′23″.6

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SH2-240

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SH2-240

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