Юпитер

Jupiter, May 28, 2021

On the morning of May 28, 2021, I photographed Jupiter very productively – in the visible range, as well as infrared 850 nm and CH4 (890 nm). The atmosphere was worse than average. I tried derotation in CH4 – successfully. The QHY5III462C camera continues to delight with excellent IR sensitivity. I was fortunate that the Great Red Spot was on the visible side of Jupiter at the time of shooting.

Jupiter, May 28, 2021, 04:06

Jupiter, May 28, 2021, 04:06

Equipment:
-Celestron NexStar 8 SE telescope
-Meade LX85 mount
-long Barlow lens 2x
ZWO ADC
-QHY IR-cut filter
QHY5III462C camera.
Processing: stacking 800 frames from 4530 (Autostakkert), wavelets (AstroSurface), derotation (WinJUPOS, 5 stacks).
Location: Russia, Anapa, backyard.

Effect of stacking and derotarion

Effect of stacking and derotarion

At IR 850 nm, the image is radically different from the visible range – the Great Red Spot becomes bright. In an unstable atmosphere, shooting in IR 850 nm makes sense, though with a drop in resolution.

Jupiter, May 28, 2021, 04:18

Jupiter, May 28, 2021, 04:18

Equipment:
-Celestron NexStar 8 SE telescope
-Meade LX85 mount
-long Barlow lens 2x
ZWO ADC
ZWO 850 nm filter
QHY5III462C camera.
Processing: stacking 800 frames from 3021 (Autostakkert), wavelets (AstroSurface).
Location: Russia, Anapa, backyard.

There is even less signal in CH4, the image is noisier. At shutter speeds of about 33 ms, you have to significantly increase the gain, which leads to alignment errors in PIPP, and a less noisy picture would not hurt to add frames in Autostakkert. Increasing the exposure to 50 ms (20 fps) had a positive effect on the result. With the QHY5III178m camera, for a more or less adequate result, it was necessary to increase the shutter speed to 100-200 ms, and then there were big problems with cropping and centering the frames. I also tried derotation of CH4 stacks – WinJupos ate the stacks without any problems. It also turned out that with a CH4 filter, you can quite successfully shoot even at dusk in a very bright sky.

Jupiter, May 28, 2021, 04:21

Jupiter, May 28, 2021, 04:21

Equipment:
-Celestron NexStar 8 SE telescope
-Meade LX85 mount
-long Barlow lens 2x
ZWO ADC
-ZWO CH4 methane filter
QHY5III462C camera.
Processing: stacking 1000 frames from 1814 (Autostakkert), wavelets (AstroSurface), derotation (WinJUPOS, 9 stacks).
Location: Russia, Anapa, backyard.

Jupiter, May 27, 2021

Jupiter, May 27, 2021, 04:22

Jupiter, May 27, 2021, 04:22

Equipment:
-Celestron NexStar 8 SE telescope
-Meade LX85 mount
-long Barlow lens 2x
-Barlow lens cell 2x NPZ
ZWO ADC
-QHY IR-cut filter
QHY5III462C camera.
Processing: stacking 800 frames from 3018 (Autostakkert), wavelets (AstroSurface). Scale 75%.
Location: Russia, Anapa, backyard.

Jupiter, May 27, 2021, 04:26.  ZWO 850 nm filter

Jupiter, May 27, 2021, 04:26. ZWO 850 nm filter

Jupiter, May 27, 2021, 04:36. ZWO CH4 Methane 890 nm filter

Jupiter, May 27, 2021, 04:36. ZWO CH4 Methane 890 nm filter

Jupiter, 5 November 2020. QHY5III462C camera test.

I tested the new camera QHY5III462C for Jupiter. The Sony imx462 sensor is distinguished by its high sensitivity to infrared rays, which allows it to be used in monochrome when shooting at a wavelength of 850 nm or more. This camera is especially interesting for shooting with a methane CH4 filter (890 nm), since its sensitivity in the infrared range exceeds that of all modern amateur astronomical cameras, including those on Sony imx224, imx290 and imx178 sensors. If earlier when shooting with a monochrome camera QHY5III178m and a CH4 filter I had to set the maximum gain and shutter speeds of 100-200 ms, then with the QHY5III462C camera I can use shutter speeds of 20-30 ms with a gain of about 80%, which greatly simplifies focusing and improves image detail in the expense of a shorter exposure.

For shooting at IR-range, I used a ZWO 850 nm filter too.

The source ser-videos are available here.

Jupiter, 5 November 2020, 18:17

Jupiter, 5 November 2020, 18:17

Equipment:
-Celestron NexStar 8 SE telescope
long Barlow lens 2x
ZWO ADC
-2 extenders
-QHY IR-cut filter
QHY5III462C camera.
Processing: stacking 1000 frames from 5584 (Autostakkert), wavelets (Registax 6).
Location: Russia, Anapa, backyard.

Jupiter in the IR range (850 nm), November 5, 2020, 18:24

Jupiter in the IR range (850 nm), November 5, 2020, 18:24

Equipment:
-Celestron NexStar 8 SE telescope
long Barlow lens 2x
ZWO ADC
-2 extenders
ZWO 850 nm filter
QHY5III462C camera.
Processing: stacking 1000 frames from 4034 (Autostakkert), wavelets (Registax 6).
Location: Russia, Anapa, backyard.

Jupiter in IR range (ch4 methane 890 nm), November 5, 2020, 06:21 pm

Jupiter in IR range (ch4 methane 890 nm), November 5, 2020, 18:21

Equipment:
-Celestron NexStar 8 SE telescope
long Barlow lens 2x
ZWO ADC
-2 extenders
ZWO CH4 methane filter
QHY5III462C camera.
Processing: stacking 1000 frames from 4028 (Autostakkert), wavelets (Registax 6).
Location: Russia, Anapa, backyard.