IKO - NGC6888 Crescent Nebula SHO Data Release - December 2023

[Grant]

I am sorry it has been so long since the last data release but I hope to post some more regularly from here onwards assuming people find it useful / interesting 🙂

This release is slightly different as it was taken from one of the 90mm StellaMira rigs from our https://www.remoteobservatory.com/ project. This started at over 270 hours of data that I have very aggressively whittled down to the best 120 hours. 

You can see the full list of equipment used here. The data isn't perfect - I didn't notice until processing the corner stars suggest the reducer spacing needs a slight adjustment but the data is so deep I wanted to share and see what other people can pull out of it.

The small print:

• We will be releasing all public data from the Ikarus Observatory project under a Creative Commons Attribution-NonCommercial licence. What this means is you are free to share, copy and redistribute the data as you see fit and adapt, remix, transform and build upon it but you must attribute 'Ikarus Observatory' as the source of the original data and must not use it for commercial purposes - i.e. no sticking images on the side of mugs and selling then 

Beyond that, enjoy and have fun!

This image was processed in the Pixinsight Weighted Batch Pre-Processor and comprises:

• Ha - 652 x 5 mins
• OIII - 389 x 5 mins
• SII - 402 x 5 mins
• Flats 21x for each filter
• Darks 21x 5 mins
• Flat Darks

These have been stacked and calibrated in Pixinsight. The raw XISF, FITS or TIF files can be downloaded here.

Details of the processing competition are here.

I hope you enjoy playing with the data, we have a few more sets in the pipeline, coming soon.

[carastro]

If you don't use Pixinsight, how can you obtain the relevant files and calibration files in fits or calibrated in Tiff format?

Carole 

 

Edited December 10, 2023 by carastro

[happy-kat]

Edit. Removed as I misunderstood the post

Edited December 10, 2023 by happy-kat

[Anne S]

4 hours ago, carastro said:

If you don't use Pixinsight, how can you obtain the relevant files and calibration files in fits or calibrated in Tiff format?

Carole 

 

They're also in fits and tif format.

[carastro]

The tiff doesn't say if they are calibrated.

Carole 

[carastro]

I have downloaded the tiffs, and they look calibrated, but it wasn;t clear from the explanation above.

 

[Ibbo!]

It says they have been calibrated in PixInsight.

[carastro]

1 minute ago, Ibbo! said:

It says they have been calibrated in PixInsight.

Precisely, that's why I wasn't sure if the non Pixinsight files had been calibrated. 

[Ibbo!]

It will have been calibrated in PI then saved in PI in the different formats.

[wimvb]

On 01/12/2023 at 14:28, Grant said:

I hope to post some more regularly from here onwards assuming people find it useful / interesting

Yes, please. There's a limit to how much fun it is to reprocess old data. So these data releases are very much appreciated.