Все публикации

0:00:24

Jupiter and Saturn conjunction video 3! *Moon only pictured here to show the scale*

0:00:25

Great Conjunction of Jupiter & Saturn 2020, with Moon added to show scale

0:00:24

The Great Conjunction 2020 -- Jupiter & Saturn

0:00:30

Only a Venus Sidereal day is longer than a Venus year!

0:00:52

Selected solar system objects to scale in size, rotation, tilt!

0:01:00

A simple comparison between Earth, Mars and the Moon

0:00:55

Selected solar system objects to scale in size, rotation speed and axial tilt

0:01:15

Here are the planets... with the only two mapped dwarf planets

0:00:27

The actual sizes of planets in our sky relative to the Moon (and eachother) until late 2022

0:01:20

These are apparent in-sky size of solar system objects relative to eachother over the next 2 years

0:00:50

The actual positions of stars in 12 constellations of the Zodiac

0:00:40

An animation to explain the (apparent) retrograde motion of Mars, using actual 2020 planet positions

0:00:48

The astronomical explanation for Mercury retrograde

0:00:40

Planets and dwarf planets to scale in size, rotation speed & axial tilt in distance order from Sun

0:00:25

The rotation periods of the planets cast to a single sphere. Rotations relative to background stars

0:00:29

The relative sidereal rotation periods of planets in 2-D (sidereal=relative to background stars)

0:00:41

The orbit(s) of Saturn's rings

0:01:32

Earth sees the same 'face' of Venus every single time the two planets are closest

0:03:06

Light speed journey to Mars in real time

0:03:07

Light speed to scale in time and space, it's fast but slow

0:03:00

How lunar and solar tides work

0:00:25

Pluto and Charon are a fine example of how bodies orbit the center of mass (barycenter)

0:00:48

The Earth-Moon Barycenter: The Moon doesn't orbit Earth's center and Earth doesn't stay still (3D!)

0:00:57

Everything in the Solar System orbits the center of mass (it's rarely in the center of the Sun!)