Juergen replied to the topic 'Ekos previews' in the forum. 5 days ago

If you are in focus at daytime you may have to correct the focus when photographing the stars, because at that big focal length 3km is not infinity. So if you saw some donuts: these should be the stars. Try to focus the donuts and you will see stars. Set the exposure time and gain that you can see the donuts.

Dont you have tracking on your 4se?

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my 2 cent: I'm stacking with APP, and I never worried about the orientation before and after meridian flip. It just works, APP orientates the pictures. As far as I rememebr also SIRIL do it that way. I just throw all the pictures as they are into APP and it works... All the other stacking programms are the same. Never heard about such an issue...

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Juergen replied to the topic 'Ekos previews' in the forum. 6 days ago

Steve, regarding Highlights, Midlights and Lowlights I would keep the Automatic Setting on (this is the button right from "highlights"). In the case in your picture everything is on "0", this leads to a white picture.

Regarding exposure time: I made sometimes the experience if the setting is too low I get no good results. Try 0.01s instead of 0.001s, but play with it, since it always depends on setup. Gain I would set for daytime photography to 0 or 1.

Regarding focus: Hy is right, that it might be, that it is not possible to get into focus with your camera with your current setup. Maybe you need some extensions. To check that it would be a possibility to point your telescope at the moon (or try it with the mountains, that should work too) and hold a white paper behind the scope. Remove the camera and eyepiece, so nothing should be in the focuser. Move the paper back and forth until you see a sharp picture on the paper. In that distance the camera sensor should be.

I would first check the exposure time / gain. If you get there a reasonable (maybe unfocused but good exposed picture) result you can then go on with the focus. You can watch the focus getting better or worth when moving the camera in or out and then you can see if you may need extensions or not.

In principle its easy but long to describe and for a beginner it is sometimes a little bit confusing ;-)

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Juergen replied to the topic 'Ekos previews' in the forum. 6 days ago

You can enter the focal length of your telescope and the size of your camera sensor into stellarium and check, how "big" your field is, which you can see with your setup. At least for my stellarium (version 0.22.2) it is that way that you can click on the "wrench" in the upper right edge of the screen to go to the setup of "sensors" and "telescopes" and you can click on the circle with the rectangle in it (the third symbol from the right) on the upper right edge to get that red rectangel on the sky map.

A few pictures:
look at the right upper edge with the symbols (you can also see an example for my sensor, and also the OAG but that is not important for you):



second picture shows the "telescope" list, my 8inch F% newton as example here:


And here the resulting sketch of the field of fiew for the setup (with info about pixel size and size of the FOV):


HTH

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Juergen replied to the topic 'Ekos previews' in the forum. 6 days ago

Hi Steve,
perhaps it would be good to focus the scope during the day on a distant object to get at least the rough focus. During daytime you maybe have to reduce the exposure time to 0.01s or even less, and also play with the gain. Then dont touch the focus until night ;-)

After you get this rough focus you can point your scope at night to a bright star and play around with gain and exposure time. The problem may be, that your 4se has 1.4m focal length and therefor a quite small field of view (*). This brings some more difficulties. I think to start with an exposure time of 2-5s should be ok, then you have to play with gain until you see stars. The stars then maybe not in exact focus but near to it (since the stars are even more distant than your object during daytime).

(*) Perhaps one recommendation: use stellarium to look, what you can get into your field of view. In stellarium you can set your focal length and your camera parameters (pixel size and so on) and you will see, what area you can see.

Good luck ;-)

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Juergen replied to the topic 'changelog 3.6.2 before updating' in the forum. 2 weeks ago

Hi Mireia,
have a look on this side:

invent.kde.org/education/kstars/-/commits/master

As far as I know the change log is created from there.

Bets regards

Jürgen

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Juergen created a new topic ' 3.6.2 BETA in STABLE!!!' in the forum. 2 weeks ago

Hi all,
i just updated my PC (Ubuntu 22.04, Kstars ppa stable). I realized that the 3.6.2 BETA was installed! Why is a BETA in the STABLE branch? Or is this indented that way? If not: would it be possible to go back to 3.6.1 in the ppa?

Regards

Jürgen

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Juergen replied to the topic 'Optical train overkill ?' in the forum. 3 weeks ago

One thing were I stumbled over when using optical trains the first time: to select another scope you have to double click to get the selection menu:
without double click:



after double click:


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Hi all,
I just have my first session with the new 3.6.1. The thing with the optical trains I have understood, no problem, just different.

But I stumbled over the "partitioning" of the windows. e.g. the Guiding window:

smaller window:



bigger window:


I think, for the smaller window the dividing of the window into graphs on the right and "text" on the left side is ok. But if I draw a bigger window, the "text" was way too big. This is also for the align-window, were barely can see the results of the platesolving in the list on the right side.
Would it be possible that one can drag/change this prtitioning? or at least could there be better default values?

Best regards


Jürgen

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yes its 64bit. If you want to buy a Mele 3Q at amazon you have to look several times. Normaly it costs 320€, but at least when I looked every few days it goes down to 260 or even 230 (and there are at least two vendors...

For remote I'm using Anydesk, also tried NoMachine, both worked

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Hi Bernd,
I recently switched to Mele 3Q www.amazon.de/gp/product/B09XPTKQRW/ref=...01_s00?ie=UTF8&psc=1, which is much faster than the Raspi. I got it for 250€.

I installed Ubuntu 22.04 and installed Kstars / Indi via the ppa from Jasem (indilib.org/get-indi.html). Always up to date, and so far no problems. I also run FC on it, much faster than Raspi.

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