M81 & M82

[Daf1983]

I've been having issues with my guiding lately, especially in RA. I finally has the time and courage to tune the backlash in my HEQ5, and a couple of clear nights let me test it out. Guiding was much more stable, generally between 0.50-0.80 total RMS, never above 0.90. It had been fluctuating wildly, especially post dither, so I'm very happy!

This is the image I took over the last 2 nights. This is the first time I've shot this target. I took 5 minute subs for a total integration time of 4 hours. Stacked in DSS and processed in photoshop.

Quite happy with the results, but struggled to get much colour out of the data. CC welcome as usual

 

[Marvin Jenkins]

Very nice. Looks like you captured some of the AGN in M82. Much better than I have managed.

Marv

[Clarkey]

3 hours ago, Daf1983 said:

but struggled to get much colour out of the data

Did you use any filters? This will reduce the spectrum available. (From M82 I would say not, but it would depend on the processing).

[Daf1983]

23 minutes ago, Clarkey said:

Did you use any filters? This will reduce the spectrum available. (From M82 I would say not, but it would depend on the processing).

I used an astronomik uv/ir cut