Rosette Nebula in HA

[Paulyman]

Hi all,

I managed to gather just 4 hours of Ha data a few weeks ago in a momentary break in the smoke haze. This is the first light with my new ZWO183MM-Pro and 7 position EFW with ZWO narrowband filters. I realised I haven't got the spacing between my new OAG and the camera quite right. I managed to get them both to come to focus by adding a spacer between the OAG and camera but it is too wide so the camera comes to focus pretty much at the zero position. This meant I had to manually focus. I'll grab a set of spacers from Bintel after the new year to fix that issue.

The details are:

Gain - 111
Offset -10
Temp - -15C
48x5 minute subs
WO Star 71, CEM40, ZWO183MM-Pro, ZWO 1.25" 7nm Ha filter

I can't wait to get more data on this target.

Higher Resolution version:

https://astrob.in/uo1s2k/B/

[Logieberra]

I’m sorry that you got no replies. That’s not nice! How do you like the CEM40?

[Bart]

Good effort, here. Some ringing of the larger stars from deconvolution perhaps? Could do with a bit more contrast as well. Keep up the good work!

[gregbradley]

Looks pretty good. I didn't realise at first it was an old post and thought its a bit early in the year to be imaging the Rosette yet but it is starting to rise up in the early morning.

Greg.