Ngc5139

[WingnutR32 (Sam)]

Still in the learning phase with all of my gear and processing.

This was taken with the following:

QHY9-M
OrangeBright 2" LRGB filters
QHY CFW
WO FLT98
AstroTech 2" Flattener

Lum 1x1 Bin / 5 seconds (20 stacks)
RGB 2x2 Bin / 5 seconds (12 stacks)

Pretty happy with the result as I was struggling with over exposing the stars. I was trying to do 5 minute exposures, where as with the stars, seconds worked much better than minutes.

[Ross G]

Nice photo Sam.

Good detail.


Ross.

[stevous67 (Steve M)]

Hello Sam,

Keep working at it! This is no doubt a challenging, but rewarding hobby. Your tracking looks pretty good, and that's really important. You didn’t mention if you calibrated your image with flats, darks, bias frames?

Cheers,

Steve

[WingnutR32 (Sam)]

Thanks for the comments guys.

Steve, yes, I did calibrate with flats, darks and bias frames. One of the rare times I actually remembered to get those extra files.

The photo was processed purely with StarTools v1.2beta following Ivo's 'recommended processing workflow'.

Cheers
Sam

[WingnutR32 (Sam)]

Redid NGC5139 with 10 second subs instead of the 5 second subs originally.

I like the detail in this much more.

Lum 1x1 19 stacks @ 10 seconds
RGB 2x2 19 stacks @ 10 seconds

[cventer]

Pretty good job for such short subs. Well done.

There does seem to be a bit of a green caste to the overall image. try dialing green in color balance back just a tad and you star colors will pop more and background will look blacker.

[WingnutR32 (Sam)]

Thanks for that, I did notice the green cast but I wasn't sure how to proceed. Will give that I try

[multiweb (Marc)]

Super sharp. Nice.

[WingnutR32 (Sam)]

Thanks Marc.

As cventer mentioned, the second attempt had a green cast to it.

I believe this third attempt has taken care of this