Great Conjunction of Jupiter & Saturn (12/21 - The Big Night) (JDJ)

Contains: Solar system body or event

Great Conjunction of Jupiter & Saturn (12/21 - The Big Night)

Acquisition type: Lucky imaging

Great Conjunction of Jupiter & Saturn (12/21 - The Big Night)

Acquisition type: Lucky imaging

After days of clouds, the skies partially cleared just after sunset and we enjoyed a 20 minute window to observe the Great Conjunction of Jupiter and Saturn on the night of closest approach on December 21, 2020.

Imaged with a William Optics GT81, 2.5x Televue Powermate, Baader UV-IR Cut filter, and ZWO ASI224MC. Imaging train was configured to give ~F/18 (`~1200 mm focal length, 0.632"/pixel, 53 pixels across Jupiter). Image capture using Sharpcap (0.05 sec exposure, Gain = 300, Histogram set to ~80% to get a good exposure on Jupiter). Stacking in AutoStakkert3 (best 10% of 1000 frames). Processed in Registax (wavelet sharpening).

Original version: 0.0028 sec exposure, Gain = 300, Histogram set to ~80% to get a good exposure on Jupiter

Version B: RGB balanced in Registax

Version C: 0.022 sec exposure, gain = 300, exposure set for Saturn & Jovian moons

Version C: Combined images optimized for (1) Jupiter and (2) Saturn and Jovian Moons using PixInsight. Used Clonestamp to remove Saturn from Jupiter image (and vice versus). Curves transformations (with masks on planets/moons) to equalize background levels. Combined images using Pixelmath process.

Original
B
C
Final
D

B

Description: A bit more processing... RGB balanced using Registax

Uploaded: ...

C

Description: Image with exposure set for Saturn

Uploaded: ...

D

Description: Used PixInsight to combine images with exposures set for Jupiter and Saturn/Jovian Moons.

Uploaded: ...

Cloudy Nights
Suburban Astrophotography
Solar System Imaging

Great Conjunction of Jupiter and Saturn (2020)
Jupiter
Saturn

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Status	n/a
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Astrometry.net job	n/a
PixInsight job	n/a
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Great Conjunction of Jupiter & Saturn (12/21 - The Big Night)

Great Conjunction of Jupiter & Saturn (12/21 - The Big Night)

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Great Conjunction of Jupiter & Saturn (12/21 - The Big Night)

Great Conjunction of Jupiter & Saturn (12/21 - The Big Night)

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