« December 21, 2020 | Main | December 23, 2020 »
December 22, 2020 Archives
Tuesday, December 22, 2020
TRACKING WITH CLOSEUPS: Two Planets, Five Moons
The #GreatConjunction of #Jupiter and #Saturn thru my telescope just after 6pm. 4 of Jupiter's moons; Europa, Ganymede, Io & Callisto, and Saturn's Titan moon visible. Stacked many images for more clarity and color. Nexstar Celestron 6SE with Nikon D750 attached. #scwx #ncwx pic.twitter.com/vzP2IAuFnS
— Ed Piotrowski (@EdPiotrowski) December 22, 2020
Posted at
13:18
TRACKING WITH CLOSEUPS: Why Those Dishwasher “Detergent Pods” Don't Get Stuff Clean
Eewww! Rinse without detergent, then wash dishes in filthy water—that makes sense! But it's so convenient.
Posted at
12:05
CONTEXT: Jupiter-Saturn Conjunction Observed at Radio Wavelengths
Conjunction of Jupiter and Saturn seen in radio. pic.twitter.com/IQGCtx9vLe
— Dr Wladimir Lyra (@DrRRLyrae) December 21, 2020
At Jupiter, what you're seeing is a cross-section of the “plasma torus” around the planet formed by emissions from the moon Io. This outshines the planet at the 2 cm wavelength of the image.
Posted at
11:59