Here is another one
nova.astrometry.net/user_images/9384463#annotated

It is same using default 4 Small Scale solve and 1 Default

Please upload these two files somewhere so I can download the fits files onto my machine.

You can dowoad it from astrometry:

Right click on solve.fits and click save as

Did not work for me, tried that unsuccessfully before and just retried same. It says "This does not look like a FITS file". It is only 4Mb.
Please post your original file somewhere and send the link.
Hy

Ooooh ok, here are they. Mind you this two might be a bit different ones as I save and manually upload all the the time to astrometry but situation is the same,

drive.google.com/drive/folders/1qmRNUa3v...MnakjalLohCGp0hD9KHt

Got your two images.

I am debugging this with the FITS Viewer's solver, and you can try and reproduce my experiments.
Open the fitsviewer solver, which is documented in the KStars handbook, currently on page 169
docs.kde.org/trunk5/en/kstars/kstars/kst...f#fits-viewer-solver

I was able to solve solve2.fits with the configuration below using my align profile



and here's the Align profile I had. I didn't play around with parameters, it was the first solve I tried with it once I set "use scale" to the right value, which I found in the fits header.
(It may not be the default, you can play around with it, but I'd be surprised if there are major changes with other similar numbers.



Note that only 7 stars were found, so that is pretty few stars for a plate solve.

In the other image, solve.fits, there were only 4 stars detected and the solve failed for me, but that image is much worse quality. That is, look like there is a guiding bump or star trail (i.e. several stars are doubled). Something like that would cause solving issues.

Hy

Oh yes the secondary one is very bad, as I said it was probably different than original, but online astrometry does that one as well

nova.astrometry.net/user_images/9391056#annotated

I will try your parameters, but suprise suprise, it is cloudy

Also, can you try using Online Astrometry as default with bad one so we can report bug to Jasem? Maybe star extraction is happening even for Online astrometry and that is why it fails?

You can try the fitsviewer solver even if it is cloudy!
Use load that image into fitsviewer and solve it.

Sorry, I don't have time in the next week or two to mess with other things.
Hy

Ok that is interesting turn of events, when I click Solve on FitsViewer, whole kstars crashes. There is nothing significant in logs.

[2024-02-19T11:21:05.931 CET INFO ][ org.kde.kstars.fits] - Saved FITS file: "/tmp/solvera011eff4b132428cbf4914cd6270123c.fits"

If you're using Stellarmate, then please reach out to the Stellarmate support and they can help you identify the crash.

If it's KStars and I have a little down time, I can try and reproduce the crash--I only run on Linux here, so hopefully it would reproduce on Ubuntu 22.04.

Please make sure you can repeat it, then send me:
- the fits file you used to crash the system (was it one of those you already sent?)
- the log file
- which OS/computer you're using,
- which version of KStars
- assuming linux, please send ~/.config/kstarsrc ~/.local/share/kstars/userdb.sqlite

Thanks,
Hy

PS If you are a programmer--e.g. this makes sense to you--please also do this
- run kstars under gdb
- when it crashes get a stack trace with the bt command

I tested KStars with online astrometry and it worked fine right away. Did you put your API key in the config?

I can confirm I jave used my own key for online astrometry. And yes I am using stellarmate OS.


1Thread 1 "kstars" received signal SIGSEGV, Segmentation fault.
0x00007ffff4b1906c in QString::operator=(QString const&) ()
from /lib/aarch64-linux-gnu/libQt5Core.so.5
(gdb) bt
#0 0x00007ffff4b1906c in QString::operator=(QString const&) ()
from /lib/aarch64-linux-gnu/libQt5Core.so.5
#1 0x00007ffff6267e88 in ExternalExtractorSolver::saveAsFITS() ()
from /lib/aarch64-linux-gnu/libstellarsolver.so.2
#2 0x00007ffff62839f0 in StellarSolver::start() ()
from /lib/aarch64-linux-gnu/libstellarsolver.so.2
#3 0x00007ffff4cca5c0 in ?? () from /lib/aarch64-linux-gnu/libQt5Core.so.5
#4 0x00007ffff58697ac in QAbstractButton::clicked(bool) ()
from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#5 0x00007ffff5869a3c in ?? () from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#6 0x00007ffff586b628 in ?? () from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#7 0x00007ffff586b8b8 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) ()
from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#8 0x00007ffff57bfe9c in QWidget::event(QEvent*) ()
from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#9 0x00007ffff577c0a0 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#10 0x00007ffff57847ac in QApplication::notify(QObject*, QEvent*) ()
from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#11 0x00007ffff4c8cd40 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/aarch64-linux-gnu/libQt5Core.so.5
#12 0x00007ffff5782c78 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) ()
--Type <RET> for more, q to quit, c to continue without paging--c
from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#13 0x00007ffff57db6f0 in ?? () from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#14 0x00007ffff57de4ec in ?? () from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#15 0x00007ffff577c0a0 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib/aarch64-linux-gnu/libQt5Widgets.so.5
#16 0x00007ffff4c8cd40 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /lib/aarch64-linux-gnu/libQt5Core.so.5
#17 0x00007ffff5087b1c in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /lib/aarch64-linux-gnu/libQt5Gui.so.5
#18 0x00007ffff505db44 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/aarch64-linux-gnu/libQt5Gui.so.5
#19 0x00007fffedfc2ab8 in ?? () from /lib/aarch64-linux-gnu/libQt5XcbQpa.so.5
#20 0x00007ffff38e774c in g_main_context_dispatch ()
from /lib/aarch64-linux-gnu/libglib-2.0.so.0
#21 0x00007ffff38e79e0 in ?? () from /lib/aarch64-linux-gnu/libglib-2.0.so.0
#22 0x00007ffff38e7a84 in g_main_context_iteration ()
from /lib/aarch64-linux-gnu/libglib-2.0.so.0
#23 0x00007ffff4ceeaa8 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/aarch64-linux-gnu/libQt5Core.so.5
#24 0x00007ffff4c8b258 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /lib/aarch64-linux-gnu/libQt5Core.so.5
#25 0x00007ffff4c942dc in QCoreApplication::exec() ()
from /lib/aarch64-linux-gnu/libQt5Core.so.5
#26 0x00005555556cfda4 in main (argc=<optimized out>, argv=<optimized out>)
at ./kstars/main.cpp:386
(gdb) exit
A debugging session is active.

Inferior 1 [process 2936] will be killed.