Spent last night using the ASI120MC with and without an x3 barlow on my 150PL. Who says it’s easy to find things with GOTO?
Author Archives: Neil Wyatt
What’s App addicts will know that Andy, Rob and I went to Brankley Pastures for a night of astronomy and dog-worrying. They showed me some interesting objects and I got to see M51 with my own eyes! I even found a few Messier objects with just a 30mm finderscope. I think all three of us thought the best thing was a brief clear sky when, even before it was fully dark, we could see the milky way right through Cygnus and beyond.
Thin cloud made me think I wouldn’t get more than a couple of decent subs of the Eastern Veil but in the end about 12 of them showed good scores and decent shaped stars. I added these to subs from 5 August. I’m actually quite pleased with how the end result turned out, especially the greeny-blue (AKA Cyan) bits of OIII – one of the few nebulas where this is easy to photograph with a DSLR:
I tried to make the best of the recent clear nights…
Some pics taken this evening with my Nikon P520, when I went out ‘bat hunting’ (NB all these images are cropped!):
Last night I discovered my guiding disaster at Rosliston was because my laptop woudln’t work with my camera any more. Sorted today by removing and reinstalling the ZWO drivers.
For last night, I had to spend nearly an hour getting my Touptec Mono to guide for me.
Then this morning, really struggled to process my data, in the end I found putting the autosave.tiff file into Astra Image worked. 1hr 35 minutes of 5-minute subs, 130P-DS, 450D, modded and cooled. HEQ5, guided.
I couldn’t get my guidescope to focus after Fridays (fascinating) RAG meeting, so my plan to do Ha on the North America Nebula flopped.
I did managed to get some semi-widefield subs of the NAN with my 135mm lens and the 1000D. For some reason the focus drifted off over the first hour until the stars turned into circles, but I caught it in time and got about 130 stackable 30-second subs.
I did 33 runs on Jupiter last night. The Red spot was well paced, as was Io transiting the planet, but although it’s shadow is clear there is only a hint of the moon.
My ADC made a huge difference.This was with the ZWO ASI120MC, x3 barlow and 150PL.
For this session, wavelets worked better than deconvolution giving a smoother result.
While listening to the election results last night I had a go a t combining my M13 data from last week (2 minute subs) with my June 2018 data (30 second subs). On average the June data wasn’t quite as high scoring because of the shorter exposures, but I was ruthless in getting rid of poor scoring frames from May (I’d already culled last year’s data). The combination seems to have been effective in keeping detail right to the middle of the cluster.