Astrophotography Processing Challenge February 2025

[AstroBee]

CALL FOR DATA!
We are in need of processing challenge data. Please consider submitting data for this fun challenge.
If you have data that you are interested in sharing, please reach out to me via PM so we can discuss it.

To start with this month I need to apologize for the file sizes. This data was 2x drizzled in PixInsight so the individual FITS and XISF files are huge and the zips are pretty large. Just remember, the XISF, FITS and TIFF zip files contain the identical data so there is no need to download all of them, just the format you prefer to edit. Please do not try to unzip the files on the Google Drive. Download the zip file you want to use and unzip it on your local drive. With RGB and SHO data, your editing combinations are endless so have fun with this one!

Sh2-157 - The Lobster Claw Nebula
My longest project to date.

Explore Scientific ED152 w/0.7x reducer/flattener, ZWO ASI2600mm Pro, Chroma RGB, Ha,OIII,SII 3nm filters, iOptron CEM70 mount, Captured with NINA 3.0, Processed with PixInsight

30x60sec. ea RGB= 90min
233x600sec Ha= 38hrs50min
86x600sec SII= 14hrs20min
126x600sec OIII= 21hrs

Total integration time
75 hours 40 minutes.

As always, have fun! It's a challenge, not a contest, so everyone is a winner!

https://drive.google.com/drive/folders/ ... sp=sharing

[Graeme1858]

Cheers for this one Greg.

I'll start downloading now!

[AstroBee]

A reminder and bump to the top of the "New Post" list. We are always accepting data for the monthly APP challenge. Please reach out to me via PM if you would like to give others a chance to process some of your data. It's a fun and educational process to see what others can do that you didn't think of.

[Gordon]

I don't suppose you want any cloud image data?
I would have lots to share!

[AstroBee]

I don't suppose you want any cloud image data?
I would have lots to share!

I know what you mean, Gordon. I have plenty of that too!
I might finally have my mount troubles worked out so I can hopefully start contributing again if the weather ever cooperates.

[Jockinireland]

Ok, heres my first go at this lovely data.

For the stars
Graxpert & BXT (correct only) on each mono
Channel Combine
SPCC
BXT Sharpen
SXT

For SHO
Graxpert & BXT (correct only) on each mono
Channel Combine
BXT Sharpen
NXT
SXT
Narrowband Normalisation & Adjust colours using masks and curves
MLT
Unsharp mask
Replace stars

I amy go back and try doing the stars with seti-astros NB-RGB Script as Im not 100% happy with these.
A decent res image can be seen in my Non-public astrobin here