Cosmos A pocket planetarium · iOS prototype
The limb of the Sun
Sol · A pocket planetarium
Cosmos

The Sun, eight planets, twenty-two moons and thirty photographs of Jupiter, developed by strangers. Drift outward, or let the show carry you.

or scroll to leave the Sun
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Open the plate
The journey ends at Neptune, 30 AU out. The moons and the JunoCam gallery continue below.
Satellite reference
Twenty-two moons

Two of them larger than Mercury. One with weather. One running backwards. Two that are barely more than gravel.

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JunoCam · Jupiter
Developed by strangers

The mission posts JunoCam’s raw frames and invites anyone to process them. These thirty passed through someone’s afternoon.

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Provenance
Where the numbers come from

Every figure here is time-independent: size, shape, spin, gravity, field and atmosphere. Each is read from the same tables the Sol orrery renders from.

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Spacecraft imagery NASA/JPL-Caltech and partners, public domain. Moon and ring maps Solar System Scope, CC BY 4.0. Type set in Cormorant Garamond and Lora.
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You, here

If the bathroom scales say {{ weight }} kg at home, here they would read {{ weightHere }}.

10 kggravity here: {{ bodyG }} m/s² · Earth 9.80120 kg
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True relative size
The seven largest, and Mercury
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Pinch, drag or slide · {{ scaleZoomLabel }} Mercury is dashed — a planet, for comparison
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Same frame, twice
Cyclone, developed
Cyclone, lifted Cyclone, as received
↔
As received
Lifted

Almost everything in the lifted version is present in the dark one — simply too dark to see. Processed by Björn Jónsson. NASA/JPL-Caltech/SwRI/MSSS.
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Technical detail from the Mission Juno image processing gallery · missionjuno.swri.edu
Tonight’s show
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Tap the edges to move · tap a tick to jump
Journey · Moons · Gallery · Colophon in the tab bar. Everything tappable: bodies open plates, moons open sheets, frames open the loupe. Figures NASA Planetary Fact Sheets · IAU WGCCRE 2015.