"Jupiturn". Jupiter Saturn. This photo is amazeballs [View all]

[Roland99]

Just went outside to see “Jupiturn”. Last time they were this close together at night, Genghis Khan was war-mongering and St Francis Assisi was making his first nativity set

Courtesy of

Link to tweet

“Jupiter's moons, left to right, are Callisto, Ganymede, Io, and Europa. A dim star is coincidentally near Ganymede.

Saturn's moons, going counterclockwise from left, are Rhea, Tethys, Dione, and Titan.

This was taken with a 9.25" (that means wide) Celestron telescope with a 2350mm focal length and an ASI 1600mm monochrome camera, with separate filters for clear, red, green, and blue.

I took 50 frames of RGB, at 20ms per frame, and 12 frames of clear at 200 ms.

Jupiter, Saturn, and the five brightest moons are from the RGB. The three dimmer moons of Saturn from the clear, brightness jacked way up.

You can see Jupiter's Great Red Spot.”