Well I’ve been having a bit of fun with a bunch of galaxy shots but thought I’d try something different and with M20 coming up around midnight ish this was a very attractive target to autorun till dawn.
I thought I had it framed ok but turns out my first attempt was a bit off and my ASIAIR Pro is not hitting the same fov after meridian flips. As a result I decided to turn it into a 2 panel mosaic and shot some more 2 nights ago. Guiding was excellent (0.4rms) on the first night but I couldn’t get it right on the second with RA a bit jumpy and total guiding round 0.6rms. Disappointing but I needed the extra data…
Soooo…I present to you my first attempt at a long FL nebula mosaic! Pixel peekers may be offended by my non-edgeHD optics and yes a few eggy stars can be seen if you zoom in but I’m still really happy by the result!
I was particularly happy to have clearly resolved the stellar jet as well as the stellar stalk (my daughter has now officially named the region the snail nebula). But there’s lots of other interesting detail within this beautiful object and so I did a few crops to present them separately.
The original TIFF output is huge and my OneDrive account keeps on crashing with it so while I work that out the jpgs will need to suffice.
Here’s the big jpg version which still allows for some zooming in…
https://1drv.ms/u/s!ArpSiLT3VkGHiPI5LTAeChkrNowjCg
C14 @f7
Eq8
Asi2600mc pro bin1
Asi290mm with celestron OAG
90x120sec + 61x120sec subs
ASIAIR Pro
AAP
Would be interested to hear some feedback as I took a few stabs in the dark regarding contrast and stretch vs noise and background brightness. Or perhaps a bit more data needed..?
Cheers and thanks for looking
Dave