Options for first time astrophotography w/ 80/900 refractor? Recently I bought a telescope and I started to take pictures of my observations. The most basic solution, I'm using a smartphone adapter and my Xiaomi Mi 6 camera to do that but the images (except for the Moon sometimes) is too bad and Jupiter and its moons not even show in my screen. So I thought in use a more serious device to take the pictures.

I have in my personal finance control a monthly quota to "astronomy", but to start I think in spend about 200€ (~$230,00).

I work with programming for 10 years (C#), so I can use something more "crude" if needed (like Raspberry Pi or Arduino). You guys can suggest something to start take decent shots of  Jupiter and its moons?
There is no "best" camera as it really depends on the subject you intend to image and the optical instrument you intend to use with it.  This could turn into a very long answer, so I'll try to offer a short response first and then offer a bit more to consider.

For planetary imaging, use a camera capable of doing video frames and this does not need to be a camera with a large chip or high resolution.  Jupiter, for example, is just fractionally under 44 arc-seconds diameter when viewed at opposition. (compare to the moon at roughly 30 arc-minutes or more than 40x the angular width).

Typically you'd capture perhap 30 seconds to a couple of minutes worth of frames and then feed those frames into stacking software.  Ideally the video frames use a "lossless" format.  Several image processing applications can stack the frames (e.g. AutoStakkert &amp; Registax are popular and free).

A camera such as the ZWO ASI120MC-S is very popular and in your budget.  There's the ASI290MC for those with deeper pockets (and versions for those with much deeper pockets).    From QHYCCD there's a QHY5R-II ... more to the entry-range with lower resolution and a smaller chip.

Ideally your scope would be on a motorized equatorial mount so that it keeps the object in your field of view (otherwise the object will quickly drift out of the camera frame.  For this scope &amp; field of view combination, that would happen in about 45 seconds for a planet in the "center" of the frame to drift out of frame completely).  If using a 2x barlow, it would happen in about half the time.



A barlow is usually used for planetary imaging (the simulated field of view did not use a barlow).  To understand why, you'd want to read about Shannon-Nyquist sampling theory and how it applies to astrophotography.