wimvb

Very nice. Just a "few" hours more and you can catch the tidal stream that wraps itself around this galaxy. 😁

It's a highway up there. I sometimes wonder at what point Musk's satellites will start to interfere with any further launches? At some point there must be a substantial risk of a rocket being hit by a satellite. But of course, most rockets never reach this altitude. As for image quality, as Steve wrote, sigma clipping takes care of removing any trace of them.

I saw some of these in your astrobin entries. Very nice, Rodd.

Thanks, Göran. Collimation was near perfect. I did a star test to check it. Most likely sagging in the focuser extension tube.

IC417 and ngc 1931 in Auriga. Imaged under a near full moon. 2 hours of Ha and some 3.5 hours of RGB. The target sets early behind my house, so only a very limited amount of data. I think I must revisit this duo earlier next season. As always, captured with my 190MN and ASI294MM camera. Processed in PixInsight.

Exactly.

it's a novel bent tube design.

Collecting RGB on IC417 before it disappears for this season.

I like it! Colour, yet not overcooked.

Here's my entry. Asteroid 17 Thetis. Fairly bright, this is an animation of 180 x 60 s images taken with a red filter, because of the 91% moon nearby. 190MN and ASI294MM camera with Optolong red filter. Animation created with Windows MovieMaker. 17thetis_yt.mp4

I was actually thinking about something similar, like movements within an SNR, like the Crab nebula. (Not that I would be able to do this.) That would need a lot more than just a year, though. Ah well, you can't turn everything into a challenge.

That graph looks like a text book example of an oscillation/resonance. Hopefully, recalubration sorted the issue. You can also try decreasing aggression and increasing minmo.

Cloudy, windy and a full moon. Not that we need an excuse for bad, or any other kind of jokes.

Brontosaurus in Europe, Velociraptor in Australia and South Africa, T-Rex in America except Canada. Just like any other established unit.

Obviously in the wrong thread. 😄

Some people/organisations will do anything to avoid using the metric system.

@pipnina to get reliable plate solving you need to make sure you have both the required and the recommended index files installed, down to at least 1/10 of your fov, I believe.

Thanks, Olly. Normally I wouldn’t even notice such a faint fuzz. But there is some very interesting physics related to this type of galaxies. That makes this an image with a story.

That’s why I prefer Linux based control systems which I only update during summer recess. But you do need some aptitude for operating systems. (Linux pun intended.)

Aka Faraday cage. Definitely change to a plastic case or use a cable

On the keyboard and screen, you mean? 😉

It’s difficult to diagnose software issues, but start by making sure that at least there are no hardware issues: power source that can supply at least the requirements (3A I believe) usb cables that work without a glitch ethernet cable to your router while testing I’ve had my fair share of problems with kstars, but mostly while the software was still under initial development. Since the releases are divided into stable and nightly builds, it has become much more reliable. And using an ethernet cable has further improved stability.

Dank je wel, @Annehouw. It’s a bit like in the Netherlands with clear skies and also dry air. But nights get shorter a lot faster up here and from end April we won’t have astro darkness until late August. I should have enough time to finish this project as well two other projects I’m working on.

Progress is slow on this project. (I'm blaming the moon, because we've had enough clear nights since I posted the first version.) I'm slowly starting to add Ha (65 subs here, 90 more this night hopefully). But what I really need is more colour and a lot more Luminance. Hopefully we'll have clear nights two weeks from now. This is at 11 hrs and 50 mins total integration time.

Most likely, but probably not at exactly 10 s. Just guide for a reasonably long time (half an hour at least, an hour preferrably) with 1 s guide exposures. Then load the guidelog into PHD Log Viewer and do a frequency analysis. This should show the most important peaks. The worm period will probably not be that well resolved, but it's the least interesting, because it will be guided out.