Andromeda's Halo, IFN, and Stellar Stream(s) - LHa(HaR)GB (Hytham)

Celestial hemisphere: Northern · Constellation: Andromeda (And) · Contains: Great Nebula in Andromeda · M 110 · M 31 · M 32 · NGC 205 · NGC 221 · NGC 224 · The star 32And · The star νAnd

Andromeda's Halo, IFN, and Stellar Stream(s) - LHa(HaR)GB, Hytham

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Andromeda's Halo, IFN, and Stellar Stream(s) - LHa(HaR)GB

Powered byPixInsight

Andromeda's Halo, IFN, and Stellar Stream(s) - LHa(HaR)GB

I've always known about Andromeda's extended halo, but to what extent Andromeda stretched out was of exciting news to me.

Last year I had processed a 9 hour image of Andromeda (2 hours in Lum, 2 hours in Ha and 1h 40m of each in RGB) and had noticed some structure in the Ha band that got me a little excited because I had not seen it present in other amateur images. This year I decided to reprocess the data starting with the Luminance and to my surprise I noticed faint underlying structure. My first reaction was a poor calibration or poor gradient removal via PixInsight's DBE because it was significant.

I went ahead and processed and after inverting the image I could clearly see some structure. My posting on CloudyNight's CCD forum confirmed that it was in fact structure (Thank you, Hiro, Leonardo, Mike and Rob [aka pfile]) and my excitement grew further.

Here is my luminance data and trying to get a proper colour image sorted out, but not having much luck ... I'm not very good with LRGB work.

Original:

- luminance process

Revision B:

- inverted and exaggerated the stretch to highlight structures

Revision C:

- combination of my original Andromeda and my latest... much better, but still not quite there. Happy ... for now ;)

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Status	Basic success
Started	...
Astrometry.net job	306558
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Andromeda's Halo, IFN, and Stellar Stream(s) - LHa(HaR)GB

Andromeda's Halo, IFN, and Stellar Stream(s) - LHa(HaR)GB

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Image Index:

Contribution Index (beta):

Andromeda's Halo, IFN, and Stellar Stream(s) - LHa(HaR)GB

Andromeda's Halo, IFN, and Stellar Stream(s) - LHa(HaR)GB

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