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Tag: vénusz

Venus 2021-08-15

Venus, 2021-08-15 through a solar continuum (green) filter

Alright, let’s go after Venus with whatever I have at hand. The local time is 16:45 (13:45Z), Venus is at around the meridian at around 45 degrees high. Behind a brightly lit blue void. The available rig: ASI 120MM (cooled), Baader Solar Continuum Filter 1.25″, barlow lenses, TS-Optics 76/342 TS76EDPH, mountpusher, EQ3-mod. Fun part: the bright sunlight and the bright blue sky made it next to impossible to spot Venus, using a mount that’s not properly aligned, thus almost no coordinates. However, I cheated. I used the Sun — fairly easy to find — to get an idea about the RA of the unaligned mount, drew lines onto the mount (it has seen worse), and I hacked together a few lines of arduino with a dev board and an MPU 9250 to show me the attitude of the scope. Have I mentioned how handy these little ESP32 dev boards are, and how arduino in general solves decade old problems, making the pedestal of obscurity embedded is in general shake a wee bit? However, I feel literally, physically tired of having to outsmart and circumvent, or just brute force every possible issue the universe (or better call it real estate maffia, then govid-19, among other issues) has in store for my hobby. Given the instruments, this picture is nowhere near the quality of my epic Venus season.

(tovább…)

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Venus 2020-05-08

Venus, Oiii and CaK

I used my usual Venus gear: EQ3 with the added ST4 port, N150/750, filterwheel, OIII + VenusU and CaK, ASI 178MM cooled.
(tovább…)

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Vénusz, Jupiter, Szaturnusz 2020-05-07-08

OIII-CaK bicolor

Venus: EQ3, soapbox, N150/750, CaK + OIII, ASI 178MM c

Jupiter, Saturn: balcony-observatory, HEQ5, soapbox, N250/1200, ADC, ASI 224MC c

(tovább…)

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Venus 2020-05-02

Venus, full spectrum

This time I used a very modest setup: the sky wasn’t promising, and indeed, the seeing was quite bad. So I put together the MC102/1300 with a barlow and an ASI 120 MM with an UV/IR cut, to capture Venus. Otherwise the unguided EQ3 did its job, given the lower magnification.

(tovább…)

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Venus 2020-04-22 and 23

The gear is the same, but I deployed a new workflow: I start the editing on the raw stack, before applying any wavelets. The reason for this is that Venus has a nasty habit of its edge going easily overexposed. The pictures are through the Venus U and the Ca K-line filters, combined with the OIII filter.

2020-04-22. Venus U and OIII

2020-04-22. Venus U and OIII

2020-04-23 CaK and OIII

2020-04-23 CaK and OIII

So the steps:

(tovább…)

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Venus 2020-04-20

Same gear, this time I pushed ten minutes into the CaK and also at around ten into the OIII, though for the latter without a particular reason (I forgot to press stop).

 

(tovább…)

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Venus 2020-04-17

Venus in CaK and Oiii

The gear, as usual, was the N150/750 on a modded EQ3 autoguided by the soapbox project. As a camera, it was the modded-to-be-cooled ASI178MM, with an automated, originally manual filter wheel. I used the OIII and the CaK filter this time, to create to bicolor combo.

(tovább…)

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Venus 2020-04-16

Same gear as before, too lazy to write it down yet again. The green and CaK filters got into this picture.

(tovább…)

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Venus 2020-04-12

Venus, green plus calcium K

The same exact gear, it’s getting boring to write it down. Only this time, it was between passing clouds, quite annoying.
(tovább…)

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Venus 2020-04-11

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:

filter pro con
Venus U brighter image way less sharp, could be due to the barlow not being optimized
CaK quite sharp darker image needing longer expos/higher gain

(tovább…)

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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.).