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carastro

IC1871 data from 3 years apart

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Also known as the Whirling Dervish

I was disappointed in my recent effort at this target that the Oiii was overwhelmed by the Ha in part of the image.  

So I decided to go back to the image I took in 2016 where the Oiii was showing, and decided to combine the two images.

Both taken from my Home Bortle 8 location in SE London. 

So this is a real mixture:
Taken with completely different equipment slightly different orientation and different scale, so a Crop was necessary. 

2016 ED80 and Atik314L (3 hours Ha, 45m Oiii and 1hour Sii)
2019 SW130PDS and Atik460EX (3 hours 20mins Ha, 1 hour Oiii, 1 hour Sii)

Totals 
6 hours 20mins Ha
1h 45mins Oiii
2 hours Sii

Grand total 10 hours 5 mins

spacer.png

 

Edited by carastro
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Great processing Carole. For me this type of image, the colour, the bubbling nebulosity, epitomises deep sky imaging. Superb. 

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Pretty good to get something like that from a light polluted zone, Carole.

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Thanks Andy.  It can be a struggle sometimes, and some targets impossible.  

Carole 

Edited by carastro

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That's an improvement Carole, greater depth to the colours.  Old data is never wasted ?.

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Quote

That's an improvement Carole, greater depth to the colours.  Old data is never wasted ?.

Thanks Barry, I am mystified as to why the missing Oiii data showed up last time, with similar amounts of Ha and Oiii each time.  I wonder whether it's because my LP has got worse because I know that Oiii can be a "no go" from here with some targets.  Also we had LED lights installed since the last image.

Any thoughts on that?

Carole 

Edited by carastro

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