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Sun, CaK, 2021-12-17

I only had a few minutes between the clouds, so no heavy post-processing this time, given that I don’t have the usual 10×3 minutes, which significantly reduces the … noise, a pixel size “something” I guess, present  either in the instrument or really on the Sun.

The gear: ASI 178MM (cooled), Baader K-Line Filter 1.25″ (double stacked), TS-Optics 76/342 TS76EDPH, mountpusher, EQ3-mod

Same happenned for 2012-12-15, only a few minutes. We can see the beautiful spotted region rotating into view

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The Sun in Calcium K – 2021-12-18

Finally, the clouds broke over the ersatz-obsi, and the Sun is showing some awesome activity. The image was taken, as usual, through the Calcium filter, which I found yields the best images, hydrogen alpha aside, of the surface of the Sun, running circles around the solar continuum, as long as a full disk image is the goal.

ASI 178MM (cooled), Baader K-Line Filter 1.25″ (double stacked), TS-Optics 76/342 TS76EDPH, mountpusher, EQ3-mod, with the automated filterwheel.

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The Sun in 2015-07-03, CaK, then vs reprocessed

Using a setup I no longer have, an Atik camera, I made a mosaic of the Sun with the N150/750 tube, through the Baader K-Line Filter 1.25″ (double stacked) filter. I processed it back then, and reprocessed it now. It shows the difference.

Calcium K (2015)

Calcium K (2015)

Calcium K 2015, reprocessed in 2021

Calcium K 2015, reprocessed in 2021

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The Sun in CaK, 2021-12-01

ASI 178MM (cooled), Baader K-Line Filter 1.25″ (double stacked), TS-Optics 76/342 TS76EDPH, mountpusher, EQ3-mod

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Sun, Hα, 2021-11-21

ASI 178MM (cooled), 0.5x, B600, Lunt LS60T Ha, mountpusher, EQ3-mod

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Sun, CaK, 2021-11-24

ASI 178MM (cooled), Baader K-Line Filter 1.25″ (double stacked), TS-Optics 76/342 TS76EDPH, mountpusher, EQ3-mod

 

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The Sun in Calcium K, 2021-11-28

ASI 178MM (cooled), Baader K-Line Filter 1.25″ (double stacked), TS-Optics 76/342 TS76EDPH, mountpusher, EQ3-mod

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Venus, through IR650 and IR850, 2021-11-17

EQ3-mod, MC102/1300, IR pass 650, automated filter wheel, ASI 178MM (cooled), ersatz-obsi, mountpusherIRpass  850

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Saturn and some of its moons, 2021-11-25

EQ3-mod, MC102/1300, TSO ADC, automated filter wheel, ASI 462MC (cooled), ersatz-obsi, mountpusher

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Jupiter and Io, 2021-11-25

EQ3-mod, MC102/1300, TSO ADC, automated filter wheel, ASI 462MC (cooled), ersatz-obsi, mountpusher

900 frames out of  ~3200 frames. 2021-11-25, 17:05Z, two minutes.

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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.).