Stacking 4 sessions...
 
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Stacking 4 sessions...2 with Bayer Drizzle and 2 without. How do I do it?


(@rattler1981)
Brown Dwarf Customer
Joined: 3 years ago
Posts: 8
Topic starter  

Hi guys. I have 10 hours worth of data split into 4 sessions. Two sessions with Bayer Drizzle and two without. I also want to separate Ha and OIII to combine as HOO. How would I go about doing this?

Thanks.

This topic was modified 2 years ago by RATTLER1981

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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4850
 

Mm, the drizzling will sharpen the result, given the data is suited for that (undersampled and nicely dithered with enough frames). It will also increase the noise a bit. The other sessions will then be less sharp, combining that will likely produce a worse result then (better compared to only combining with non dithered data, worse when combining just drizzled data). Dimensions will be different, so it needs to re-register etc.

Separating Ha and OIII can be done when you load in the data and selecting the (extract Ha, or OIII) algortithm in tab 0.


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(@rattler1981)
Brown Dwarf Customer
Joined: 3 years ago
Posts: 8
Topic starter  

OK thanks. So if I don't Bayer Drizzle on either would there be any benefit from uping the scale only?


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4850
 

Uhm, I would say no as there is no extra information present to make that beneficial, but I've never done it so I'm not 100% sure. It increases resolution, but I doubt it gives you a better result.


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