Altocumulus

I used a translate plugin on my Firefox browser.

On a slight side to this, one guesses a mis-sampling could have an effect on focusing? (over and above seeing of course.)

Thanks all. Tell it more times, and it might sink in!! Vladimir! Reading your article Nicolàs, thanks.

Many thanks. I've come across some accounts suggesting 7* for mc cameras because of the matrix, so you're good! Where some confusion comes from is ccd compatibility in astronomy tools that suggests a barlow worsens. The 174 on the 180 is already to the left of the green band - adding barlow shifts it further to the left...mind it's over rather than undersampling.

Och - a side effect of getting old Brain's not what it used to be.... May I check with the Planetary Imagers on cameras. Does the 5 * pixel size ~ telescope f-ratio hold? Or is there a better formulation. I keep reading all the bits on Dawes Limits and Nyquist, but nothing sticks on the brain cells, so if someone has a simple easy to use guide, I'd appreciate it. For instance I'm guessing - under the above rule of thumb - the 178 chip at 2.4µm ( 12 - bit low ) and the 462 at 2.9µm ( 14.5 - close, but the one I have is colour ) are within the native resolution of the SkyMax 180Pro f15. Similarly the ZWO 174mm at 5.6µm probably needs at least a 1.5* barlow added to the imaging train? Not too sure I can get focus with a 2*. I'm likely looking at f17-20 on the SkyMax with a Crayford and ADC in the train.

How did you know the shot wasn't taken as the tower was collapsing sideways?

Good going for that elevation. No way would I get anything decent up her, the sun's barely a couple of hands above the horizon .

A few firsts here - use of filters and winjupos de-rotation... Couldn't find a place to add a luminance channel in WJ, it seemed it 'wanted' one of the rgbs? 16,000 or so frames on each channel. Skymax 180 Pro ZWO 174mm ( tried to use a 2 barlow, but couldn't focus ) Focus in fact probably could be 'better' but some thin high cloud around. ZWO filter holder Sharpcap/AS3/WJ

Versions for your enjoyment! Almost a full night session - Three for you - Keogram image for the whole night - timescale along the bottom. Horizontal Aurora watch cam - North is just about the tree edge on the horizon right. Overhead Allsky - North at top, lights of Aberdeen at the bottom. Power poles aligned 085-265 degrees - East is on the left. All produced using AllSkEye windows software. Aurora.aviSky Aurora.avi Aurora.mp4 Sky Aurora.mp4

Neat!

Good slice. Let us know when you've completed Jupiter and Mars. Still stuck behind clouds here - last session I managed was 10 days ago!

Aha. The culprit! Mind, I blame all those cables!!!!

OOUK, Orion Optics UK. Does anyone own the 140 Mak? I'm trying to find a solution that would allow me to use this with a remote focuser. The fit for the back is AP 2.7" and SCT thread. An OVL Dual Speed 2" Crayford Focuser For SCT Telescopes should fit, I use this on my Skymax, but there's not enough space on the rear of the 140 as the focus knob gets in the way! It currently has a Baader adapter to fit a dslr - see image. The standard eyepiece fitting, in my humble opinion, mars the quality of the rest of the assembly.

May I join in with the wows? Wow!

Question or three, if I may. Did the sequencer work? How does one calibrate the changes in focus for filters? Did you use autofocus and still have enough time to capture frames before Jupiter's spin affects the end stack? I've come across winjupos but am still learning the ropes moving from both Solar and a single bad session with an MC camera.

Well I came here to see if anyone had cleaned a Skymax 180 and walk away somewhat overwhelmed! My Mak displays flakes peeling from the inside of the tube like leprosy, and the main mirror looks like it has black measles! Still works, to a fashion, but if I have to take the plunge at least I have a bit of a guide unless I can find a decent repair service! Subscribed for future reference.

Impressive. Three moons too? I've learnt a thing or two reading this, thank you. Apart from the odd moonshot I've only done solar, so that experience I carried over into my first Jupiter earlier this week. I'd hazard a guess my first error was in only taking 1-2k fast frames. Next time it'll be in the 10-20k ball park! Plus my first time with an OSC!

Me too! I effectively failed last night....

Darn sight better than my attempts yesterday evening. Jupiter was bouncing around all over the place. Couldn't be certain of good focus which was evident this morning trying to tease something out of the data. Still was my first time and also with an osc cam , so room for me to improve, though maybe not as good as this from you Graham...

One thing I've noticed with cut&paste is occasionally a forward or training space that needs deleting.

Mm. Perhaps ask Mike as if there's a bug. I'll stick my neck out and ask you didn't have finger trouble when you manually corrected wrong or missing values on the ftp?

By copy, do you mean you exported settings from the old pc and then imported into the new? Perhaps ask Mike on the AllSkEye site?

It's on a par with some I've recorded over the last year or so. Still struggling somewhat with trying to improve the colour. Truncated timelapse... Aurora 22_23_Oct_2022.mp4

Last Night - Aurora Keogram - NE Scotland - 22-23rd October 2022 ZWO 178MC horizontal diy skycam - software AllSkyEye. 25 second exposures with 20 second pause

Nice Steve.