Marche de l'échelle
Faites défiler du Soleil à Neptune à l'échelle réelle, avec des marqueurs de temps de voyage de la lumière le long du chemin.
ESO/S. Guisard (www.eso.org/~sguisard) (CC BY 4.0)
Marche de l'échelle
Everything here is at true scale: sizes and distances in the same proportion. Each pixel you scroll carries you 3 000 km.
Keep scrolling. Every picture you have seen of the solar system squeezed this emptiness out.
Mercury is ahead, where sunlight is almost seven times stronger than on Earth.
Still nothing. You have crossed 16,8 millions km since Mercure.
The sunlight passing you now left the Sun 5 min 5 s ago.
Earth is ahead. Watch how small home turns out to be.
Mars is still 58,8 millions km ahead.
A radio message from Earth takes between 3 and 22 minutes to reach Mars, depending on where the two planets are.
You could line up 4 611 Earths side by side in the space you have crossed since Terre.
You are 14% of the way from Mars to Ceres.
Still nothing. You have crossed 53,1 millions km since Mars.
The sunlight passing you now left the Sun 17 min 6 s ago.
Ceres is still 79,6 millions km ahead.
You are inside the asteroid belt. Did you hit anything? On average the asteroids are about a million kilometres apart.
You could line up 12 497 Earths side by side in the space you have crossed since Mars.
You are 17% of the way from Ceres to Jupiter.
Still nothing. You have crossed 122 millions km since Ceres.
The sunlight passing you now left the Sun 33 min 8 s ago.
Jupiter is still 122 millions km ahead.
You could line up 23 846 Earths side by side in the space you have crossed since Ceres.
You are 10% of the way from Jupiter to Saturne.
Still nothing. You have crossed 130 millions km since Jupiter.
The sunlight passing you now left the Sun 54 min 5 s ago.
Saturne is still 389 millions km ahead.
Voyager 1 took about 20 months to fly from Jupiter to Saturn.
You could line up 30 529 Earths side by side in the space you have crossed since Jupiter.
You are 70% of the way from Jupiter to Saturne.
Still nothing. You have crossed 519 millions km since Jupiter.
The sunlight passing you now left the Sun 1 h 16 min ago.
Uranus is still 1,31 milliard km ahead.
You could line up 20 605 Earths side by side in the space you have crossed since Saturne.
You are 27% of the way from Saturne to Uranus.
Still nothing. You have crossed 525 millions km since Saturne.
Uranus orbits twice as far from the Sun as Saturn. The farther out you go, the emptier it gets.
The sunlight passing you now left the Sun 2 h 3 min ago.
Uranus is still 525 millions km ahead.
You could line up 82 418 Earths side by side in the space you have crossed since Saturne.
You are 82% of the way from Saturne to Uranus.
Still nothing. You have crossed 1,31 milliard km since Saturne.
The sunlight passing you now left the Sun 2 h 48 min ago.
Neptune is still 1,33 milliard km ahead.
You could line up 34 840 Earths side by side in the space you have crossed since Uranus.
You are 36% of the way from Uranus to Neptune.
Still nothing. You have crossed 740 millions km since Uranus.
Voyager 2 needed about three and a half years to cross this gap, from Uranus in 1986 to Neptune in 1989.
The sunlight passing you now left the Sun 3 h 37 min ago.
Neptune is still 444 millions km ahead.
You could line up 104 519 Earths side by side in the space you have crossed since Uranus.
You are 91% of the way from Uranus to Neptune.
Still nothing. You have crossed 129 millions km since Neptune.
The sunlight passing you now left the Sun 4 h 24 min ago.
The Kuiper belt: a ring of icy worlds so spread out that after Pluto, New Horizons flew close to just one of them.
Pluton is still 906 millions km ahead.
You could line up 50 798 Earths side by side in the space you have crossed since Neptune.
You are 55% of the way from Neptune to Pluton.
Still nothing. You have crossed 906 millions km since Neptune.
New Horizons, one of the fastest spacecraft ever launched, took nine and a half years to reach Pluto. Sunlight gets to Pluto's average distance in about five and a half hours.
The sunlight passing you now left the Sun 5 h 15 min ago.
Pluton is still 129 millions km ahead.
Scroll down inside the frame to fly outward, or start the autopilot below.
Journey's end
Look back. That bright star is the Sun.
Tableau de données (texte alternatif)
| Monde | Diamètre | Distance du Soleil | Temps de voyage de la lumière depuis le Soleil | px |
|---|---|---|---|---|
| Mercure | 4 879 km | 0,387 au | 3 min 13 s | 19 303 |
| Vénus | 12 104 km | 0,723 au | 6 min 1 s | 36 070 |
| Terre | 12 742 km | 1 au | 8 min 19 s | 49 866 |
| Mars | 6 779 km | 1,52 au | 12 min 40 s | 75 981 |
| Ceres | 939 km | 2,77 au | 23 min 0 s | 137 907 |
| Jupiter | 139 822 km | 5,2 au | 43 min 16 s | 259 447 |
| Saturne | 116 464 km | 9,54 au | 1 h 19 min | 475 555 |
| Uranus | 50 724 km | 19,2 au | 2 h 40 min | 956 886 |
| Neptune | 49 244 km | 30,1 au | 4 h 10 min | 1 499 465 |
| Pluton | 2 377 km | 39,6 au | 5 h 29 min | 1 974 125 |
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