abell 39

[alacant]

hi everyone

With darkness getting less and less and with all of the wow factor stuff in Sagittarius to have a go at, it's difficult justifying challenging targets like this. 

Tried a few frames with no filter; nebula barely there, even at 5 minutes. Then remembered someone posting about CLS filters for this type of nebula. Then, having fitted it, forgotten to reconnect the camera (DUH) and finally finding the dangling lead, I was already an hour down, an hour before the meridian and with only around 4 hours of good darkness left, but at least with a clearly visible albeit small circle centre frame.

I really wish I'd had longer focus. At 750mm, the little reflector did its best, but i hate having to crop-enlarge as much as I hate tiny blobs in a sea of frame.

Mystery as to why the CLS makes such a difference. I thought it was more use visually. Oh, and background not good. 

Thanks for looking and stay safe.

700d @ ISO800

 

Edited May 28, 2020 by alacant
wrong translation

[ollypenrice]

Nice. Why would you not want to crop for presentation on a forum like this? It just saves people from doing a lot of clicking. There's nothing artificial about it, any more than there is in walking towards a picture in an art gallery.

Olly

[MarkAR]

Small but sweet, well done.

[Magnum]

you dont mention what equipment you are using, camera & scope etc?

 

Lee