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Saturn 2019-08-05

ASI 224MC, TSO ADC, N250/1200, HEQ5

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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…)

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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.

 

(tovább…)

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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

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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.

(tovább…)

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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.

(tovább…)

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Jupiter, Europa 2019-07-25

Jupiter and its Europa

The setup was the usual, ASI 224MC, TSO ADC, N250/1200, HEQ5, and the seeing had its good moments, but there were some clouds or fog.
(tovább…)

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Jupiter 2019-07-22

Jupiter and Io, 2019-07-22There’s been some nasty nebulosity these days, either thin clouds or outright fog, impossible to tell from within the city. Though the seeing had its good moments, transparency was awful. I’ve been wondering these days about not owning a TV. Well, the transit of Io observed here sure lacks the action of a spacefight but sure has something kubricky about it. ASI 224MC, TSO ADC, N250/1200, HEQ5
(tovább…)

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Jupiter 2019-07-21

The boring side: the best seeing I’ve seen for a very long time. And it was the boring side. ASI 224MC, TSO ADC, N250/1200, HEQ5

(tovább…)

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Saturn 2019-07-20

ASI 224MC, TSO ADC, N250/1200, HEQ5

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Jól kalibrált monitoron mindegyik számnál elkülönülő árnyalat látszik. Ha mégsem látszanak, akkor a megjelenített képek színhiányosan rajzolódnak ki. A monitort valószínűleg kalibrálni kell.

You should see distinct shades for each number. If those shades are not clearly visible, the displayed pictures will lack accuracy. Your display most likely needs to be calibrated (brightness, gamma, contrast etc.).