Traduit par IA (Opus 5.5) à partir de la fiche anglaise. Les nombres, noms et sources sont inchangés.

Planète

Earth

Ouvrir dans Ouranos Comparer sa taille

Notre maison. Le seul monde où l'on connaisse la vie.

Mesuré

Rayon équatorial: 6,378 km
Depuis le Soleil aujourd'hui: 0.989 ua (148 millions de km)

Distance au Soleil

0.989 ua. Pour la traverser :

Lumière8 minutes 14 secondes
Vitesse de Voyager 13.33 mois
Roule à 100 km/h169 ans

Voyager 1 à la vitesse à laquelle elle s'est éloignée au cours de l'année jusqu'à 2026-10-25 (JPL Horizons). En voiture : sans arrêt, sans jamais refaire le plein.

Sondes qui s'y sont rendues

Hubble Space Telescope — Active mission (science.nasa.gov, checked 2026-11-01). There since 1990-04-24.
International Space Station — Crewed and operating. There since 1998-11-20.
James Webb Space Telescope — Active mission (science.nasa.gov, checked 2026-11-01). Orbits the Sun–Earth L2 point, ~1.5 million km beyond Earth. There since 2022-01-24.
Euclid — Operating (ESA news through 19 October 2026). Orbits the Sun–Earth L2 point.
SOHO — Active mission (science.nasa.gov, page updated 2026-01-09). Orbits the Sun–Earth L1 point, ~1.5 million km sunward. There since 1996-02-14.
SOLAR-1 (SWFO-L1) — Operating — NOAA's primary solar-wind source since June 2026, with ACE as backup (NOAA SWPC notice, 2026-06-30). Orbits the Sun–Earth L1 point. There since 2026-01-23.
IMAP — Operating — arrived at L1 in January 2026, science since February 2026 (NASA); its real-time I-ALiRT data was in NOAA's feed on 2026-10-29. Maps the heliosphere's edge from the Sun–Earth L1 point. There since 2026-01-10.
Aditya-L1 — Operating — ISRO's third guest-observer cycle runs October–December 2026 (ISRO announcement, 2026-07-16). India's solar observatory at the Sun–Earth L1 point. There since 2024-01-06.
Advanced Composition Explorer (ACE) — Operating — NOAA's backup solar-wind source behind SOLAR-1 (NOAA SWPC notice, 2026-06-30); its real-time data was flowing on 2026-11-01, when NOAA's feed marked it the active source. At the Sun–Earth L1 point since 1997. There since 1997-12-12.
Wind — Operating — JPL's Wind trajectory was revised 2026-09-30 and runs to December 2026 (Horizons). Launched 1994; at the Sun–Earth L1 point since 2004. There since 2004.
TESS — Active, on its extended mission (science.nasa.gov, page updated 2026-08-13). Hunts planets round nearby stars from an orbit of about 13.7 days, in step with the Moon: nominally 108,400 × 376,300 km, the mission design as Horizons' summary gives it.
Chandra X-ray Observatory — Active mission (science.nasa.gov, page updated 2026-04-14), on a reduced budget: $63M for FY26, $11M below full-mission costs (Chandra Users' Committee, 2026-05-06). Its orbit has changed since launch, when it was 10,000 × 140,161 km, inclined 28.5° (chandra.harvard.edu); about 12,800 × 136,000 km above the Earth, inclined 58°, from CelesTrak's elements read 2026-10-31.
Nancy Grace Roman Space Telescope — Active mission — launched 2026-08-30 on a Falcon Heavy (science.nasa.gov), in science commissioning by 2026-10-22 (NASA's Roman blog). On its way to the Sun–Earth L2 point: NASA's plan is final orbit there about 100 days after launch, about early December (Roman blog, 2026-09-14); no word of its arrival was found on 2026-10-31. JPL's trajectory is tracking through 2026-10-18, a prediction after (Horizons).

Lunes (1 en Ouranos)

The Moon

Source

Planets, Pluto, the Moon and Jupiter's big moons: astronomy-engine (Don Cross, MIT). Other moons: JPL Planetary Satellite Mean Elements. Ceres, Eris, Haumea, Makemake: JPL Small-Body Database. NASA/JPL-Caltech.

Chaque catalogue utilisé par Ouranos est cité dans la page des crédits.

Sondes qui s'y sont rendues

Hubble Space Telescope — Active mission (science.nasa.gov, checked 2026-11-01). There since 1990-04-24.

International Space Station — Crewed and operating. There since 1998-11-20.

James Webb Space Telescope — Active mission (science.nasa.gov, checked 2026-11-01). Orbits the Sun–Earth L2 point, ~1.5 million km beyond Earth. There since 2022-01-24.

Euclid — Operating (ESA news through 19 October 2026). Orbits the Sun–Earth L2 point.

SOHO — Active mission (science.nasa.gov, page updated 2026-01-09). Orbits the Sun–Earth L1 point, ~1.5 million km sunward. There since 1996-02-14.

SOLAR-1 (SWFO-L1) — Operating — NOAA's primary solar-wind source since June 2026, with ACE as backup (NOAA SWPC notice, 2026-06-30). Orbits the Sun–Earth L1 point. There since 2026-01-23.

IMAP — Operating — arrived at L1 in January 2026, science since February 2026 (NASA); its real-time I-ALiRT data was in NOAA's feed on 2026-10-29. Maps the heliosphere's edge from the Sun–Earth L1 point. There since 2026-01-10.

Aditya-L1 — Operating — ISRO's third guest-observer cycle runs October–December 2026 (ISRO announcement, 2026-07-16). India's solar observatory at the Sun–Earth L1 point. There since 2024-01-06.

Advanced Composition Explorer (ACE) — Operating — NOAA's backup solar-wind source behind SOLAR-1 (NOAA SWPC notice, 2026-06-30); its real-time data was flowing on 2026-11-01, when NOAA's feed marked it the active source. At the Sun–Earth L1 point since 1997. There since 1997-12-12.

Wind — Operating — JPL's Wind trajectory was revised 2026-09-30 and runs to December 2026 (Horizons). Launched 1994; at the Sun–Earth L1 point since 2004. There since 2004.

TESS — Active, on its extended mission (science.nasa.gov, page updated 2026-08-13). Hunts planets round nearby stars from an orbit of about 13.7 days, in step with the Moon: nominally 108,400 × 376,300 km, the mission design as Horizons' summary gives it.

Chandra X-ray Observatory — Active mission (science.nasa.gov, page updated 2026-04-14), on a reduced budget: $63M for FY26, $11M below full-mission costs (Chandra Users' Committee, 2026-05-06). Its orbit has changed since launch, when it was 10,000 × 140,161 km, inclined 28.5° (chandra.harvard.edu); about 12,800 × 136,000 km above the Earth, inclined 58°, from CelesTrak's elements read 2026-10-31.

Nancy Grace Roman Space Telescope — Active mission — launched 2026-08-30 on a Falcon Heavy (science.nasa.gov), in science commissioning by 2026-10-22 (NASA's Roman blog). On its way to the Sun–Earth L2 point: NASA's plan is final orbit there about 100 days after launch, about early December (Roman blog, 2026-09-14); no word of its arrival was found on 2026-10-31. JPL's trajectory is tracking through 2026-10-18, a prediction after (Horizons).