Venus green+U

The same gear, but now the fully automated filter wheel with its hand controller optionally connected to the soapbox project and the desktop app now controlling sharpcap — telling it which filter is active. This day the Venus U filter yielded the best result.

In fact, the pros and cons in my experience with Venus, two different barlow lenses and two different scopes, the N150/750 and the N250/1200:

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CaK and red combined

Same exact gear as before. (tovább…)

Venus with the U filter and the OIII this time

Same exact gear, except for using the Venus U filter for this shot. Was it luck or something else, this time the Venus U image was better than the Calcium K. Not the best seeing. So, the outcome is:

Venus

Same exact gear, but worse seeing. Also, it’s curious that the contrast on Venus has diminished somewhat.

Venus

Using the same gear as yesterday, the N150/750, the motorized filter wheel, the green and Calcium K line filters and the cooled ASI 178MM, all guided by the soapbox, I imaged Venus.

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Venus, false color

Using the same gear as yesterday, the N150/750, the motorized filter wheel, the green and Calcium K line filters and the cooled ASI 178MM, all guided by the soapbox, I imaged Venus.

(tovább…)

Venus, false color

Again, nothing new, same old gear, but I replaced the red/infrared filters because I suspect that my barlow lens is not permorming well with the wide band filters. So this time, green is the new orange, and the Calcium K line remained, as I like it better than the Venus U, at least for this setup.

N150/750 on the modded EQ3, the soapbox autoguider, ASI 178 MM with cooling added. I was looking at the amount of boxes I put together, and it’s starting to eclipse the „original” gear.

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Venus, OIII + Calcium K

Nothing fancy, it’s just that my filter wheel arrived, and using the gear from an old printer, and a dc motor with a reductor box, I motorized it before even its first use. It’s still manual in the sense that there is no sensor to stop the wheel, it just goes one way or the other. Instead of the red channel, this time I used an OIII filter for the orange, and the cyan is still the Calcium K, as I like it more than the Venus U. The seeing, well, could have been better.

So the gear: N150/750 on the modded EQ3, the noszogtató autoguider, filters, ASI178MM modded (cooled)

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Nothing fancy here, just using the same gear with the same settings. A slightly improved szappantartó autoguider and the knowledge that that mount is, in its current mechanical state, simply incapable of not sliding a few arc minutes from time to time, be the reason a backlash or tension building up and then being released.

N150/750, modded EQ3, ASI 178MM with peltier cooling, red+calciumK

Venus

With this PITA-19 I am more than limited, so I must settle with the N150/750 on the home modified and auto-guided EQ3. Using the Calcium K line, the Venus U and a simple red filter, I obtained the following pictures. The seeing was varying, with good moments and very bad periods. The best frames I obtained with the Calcium K filter, so the final color image is K as luminance over red as orange and K as cyan. The camera, as usual, was the ASI 178MM, no cooling this time.

The session spanned for more than two hours, so I had enough time to see the clouds move.

2020.03.27. venus frames

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