M13 - reprocess

[Apharov]

I first used DSS for stacking and posted the result at http://stargazerslounge.com/topic/213561-m13-first-attempt/. I was left a bit unhappy with color balance and loss of color in stars. After upgrading to Nebulosity things seem better:

I also added flats to the stacking process, so the background is more even now.

[Apharov]

Also available in significantly better resolution at http://aapo.smugmug.com/Astro/i-phRVXsh.

[red dwalf]

very nice, can be a tricky target getting the center stars right without bloating them

[lensman57]

Lovely capture,well done. The Propeller is visible and there is also a hint of outer dust lanes.

A.G

[Carina Lass]

Trick with globs is shorter subs - then you don't overfill the sensor cells.

If you overfill them, the colour is gone.

[StuartJPP]

I like that!

[Pete Presland]

the colour balance is much better!

[jambouk]

That is lovely!

How much data and how long were the subs etc?

Jd

[PeterCPC]

Nice image.

Peter

[Apharov]

How much data and how long were the subs etc?

The subs were taken with SW 200PDS on HEQ5 with an unmodded Canon 70D. For this image I think I used about 15 x 45s @ ISO3200, unguided.  Stacked and adjusted a bit in Nebulosity, final output processed in Lightroom.