Great approach of Jupiter & Saturn in Dec 2020

Date & Time:	Displayed in image, composed 0.1sec × 5shots, 0.01sec × 5shots
Optical:	Dec 19: TAKAHASHI 12.5cm(4.9") Fluorite refractor (1000mm, F8.0)
	Dec 20, 21: Kasai 20cm(7.9") Newtonian(NERO-200DX) (1200mm, F6.0)
	Dec 19: Auto-guided with VIXEN ATLUX Equatorial
	Dec 20, 21: Auto-guided with TAKAHASHI EM-200 Equatorial
CMOS camera:	ZWO ASI183MC + IR cut filter
Location:	Ooizumi, Hokuto city, Yamanashi pref.(Dec 19), Hitachi city, Ibaraki pref.(Dec 20, 21)

Camera Settings:	Recording format...8bit TIFF(5496×3672)
	Device Size...13.2×8.8mm, Gain...400

Jupiter & Saturn in evening sky (Dec 19)

Date & Time:	Dec 19 2020, 18:05, 10sec exposed
Optical:	AF zoom-Nikkor 24-85mm (f=85mm, stop: F5.0)
	with Kenko Starry-Night filter
Digital Camera:	Nikon D810A
Location:	Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings:	Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912)
	Device Size...FX format(36×24mm)
	Sensitivity...ISO1600, White Balance...Daylight

In Dec 2020, we could appreciate a rare sky event of great approach of Jupiter and Saturn in evening southwest skies. The both planets closed to an elongation of only 0.1 degree on Dec 21; it made the darker Saturn hard to see with naked eyes. Although the Jupiter and the Saturn approach each other every 12 years or so, the great approach in this time was the first case in last 400 years.
Russian numbers in the 1st image denote the satellites of Jupiter and Saturn.
(I...Io, II...Europa, III...Ganymede, IV...Calisto, V...Titan)

Movement of Haumea

Great approach of Venus & Saturn (Jan 9, 2016)

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