Horsehead Nebula Widefield (Steve Milne)

Celestial hemisphere: Southern · Constellation: Orion (Ori) · Contains: Horsehead nebula · IC 431 · IC 432 · IC 434 · IC 435 · NGC 2023 · NGC 2024 · The star Alnitak (ζOri) · The star σOri

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Horsehead Nebula Widefield

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Horsehead Nebula Widefield

This is an amalgamation of data taken through my WO Star 71 Mk I here in the UK, and older LRGB data offered to me by Olly Penrice of Les Granges fame.

The LRGB was shot through Olly's reduced Takahashi FSQ 85 and an Atik 4000 camera. Lum is 2 hours 40 minutes of 5 minute subs; I am not exactly sure how much RGB there is - I put down an hour of each (which, knowing Olly, is probably an underestimate).

Everything was registered to everything else via Registar (which did a great job as far as I can tell). Alnitak was a bit of a pain. The Lum did not show the pair. However, a false Lum stolen from the RGB did (as did the Ha). So I have just about been able to show it as a double. I went back and forth on the middle belt star (I think it is called Alnilam). You can see its halo top left. I could have tried to take this out, but I thought it looked more natural left in. There is so much dust in this area, and I could have brought out more. However, of the gazillion versions I put together, this one seemed to me to be the most pleasing.

I have just put the same acquisition date down, but in reality this was shot over many different nights. Even with the Ha the weather has been such in the UK that I have only managed 40 minutes some evenings. And I have no idea the dates of Olly's data.

Original
B
Final
C

B

Description: I had a comment that the flame might be a bit too red...

Uploaded: ...

C

Description: Tiny bit more work on the flame, following feedback.

Uploaded: ...

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Status	Basic success
Started	...
Astrometry.net job	1445120
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Horsehead Nebula Widefield

Horsehead Nebula Widefield

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Image Index:

Contribution Index (beta):

Horsehead Nebula Widefield

Horsehead Nebula Widefield

Equipment

Acquisition details

Description

Comments

Revisions

B

C

Sky plot

Histogram

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