Antares region and Rho Ophiuchi over 4 years

[Carole]

I have been bashing away at this image since 2017 as follows:

Taken over several years.  Twice in Spain and twice in East Sussex.

Spain 2017 DSLR and cheap camera lens and Ioptron skytracker. 4 hours
Spain 2019 same set up but with a luminance filter and Mono CCD camera 2 hours
I wasn't happy with either as the cheap camera lens produced horrible stars.

Having bought a Samyang 135mm lens at the end of 2019, I decided to try to get better luminance from the campsite I visit from time to time in East Sussex, but it is VERY low from the UK.  This time I could take my full rig with me and do longer guided subs.  HEQ5, Atik460EX and Samyang 135mm lens.

2022 I captured some luminance with better stars of the Antares region, but half of Rho Ophiuchi was chopped off.  1 hour 20mins
https://www.astrobin.com/sz1393/B/
last week April 2023 at DSC I captured the area around Rho Ophiuchi and made a mosaic thus completing the image at last.  1 1/2 hours.  Of course we can always use more data but given my VERY limited opportunities I think this will be the final version.

Total of 8h 50mins

https://cdn.astrobin.com/thumbs/EfR8XfomA_Qj_16536x0_ieTZ0INm.jpg

[Roberto]

This is a fantastic result!  This version here does not do justice to the one on Astrobin.  Well done indeed!

Roberto

[Carole]

Thanks Roberto.  I was confused by your comment, as the one posted above is the same as the one on Astrobin, but after some head scratching realised that the link above to Astrobin links to a previous version.

So I hope that it is the latest version that you like the best where I have reduced the stars a bit. 

Carole