ASI 224MC (cooled), TSO ADC, N250/1200, HEQ5, home observatory, mountpusher
a rotated view, why not
Jupiter and Europa 2019-08-10
Jupiter and Ganymede 2019-08-04
ASI 224MC, TSO ADC, N250/1200, HEQ5
(tovább…)
Saturn 2019-08-09
400k frames (more than an hour raw video, 150 GB data) with the ASI 224MC, TSO ADC, N250/1200, HEQ5
Saturn 2019-08-05
ASI 224MC, TSO ADC, N250/1200, HEQ5
Saturn 2019-07-30
I imaged Saturn with comparatively good seeing conditions. About 150k frames and half an hour of raw went into the final picture. ASI 224MC, TSO ADC, N250/1200, HEQ5
(tovább…)
Jupiter 2019-07-30
Jupiter, 2019-07-30
It’s been a beautiful seeing, what a seeing, great seeing, it’s great seeing man. I observed Jupiter, as usual, and the atmosphere had some very good moments. ASI 224MC, TSO ADC, N250/1200, HEQ5. Home observatory, mount pushing soapbox, life is short.
Saturn 2019-07-27
Nothing fancy, just the good old technique: falling asleep while tens of thousands of frames get recorded, and the telescope is kept on target by the soapbox project. ASI 224MC, TSO ADC, N250/1200, HEQ5
Cooled ASI 224 MC
dew formed
Looking at my camera during these hot days made me think: I was recording planetary images at 27°C ambient temperature, and the camera sensor indicated 35 degrees. A bit too hot for my taste. I put a cooling fan on and a bigger one near the camera, a few degrees went down. So I deployed the cavalry: a TEC1-12706 peltier element and a radiator to cool the camera down a bit. It may or may not have helped the image quality, given that the seeing is a much more impacting factor, and the seeing usually sucks, but the camera sensor went down 25°C. And dew formed (I hate these hot and humid days). The peltier’s nominal voltage is at around 12V, however, I figured that 12V is just too much to handle, so I dialed the voltage down to only 3.5V using an oversized (12A, to err on the safe side) buck converter and a 12V 3A mains power source. The camera’s body is aluminium, its back has four conveniently positioned M4 holes: an old computer’s radiator, some thermal grease, plus pliers and a RPi fan was all needed.
Jupiter 2019-07-28
Jupiter, the boring side
With the usual setup, from the usual location: Jupiter, the boring side. ASI 224MC, TSO ADC, N250/1200, HEQ5 guided by the soapbox project from the balcony observatory. Bad observing conditions: low transparency, bad seeing and passing clouds.
