343 meters per second (1,125 ft/s). This equates to 1,236 kilometers per hour (768 mph), or about one kilometer in three seconds
11.2 km/s
≥ 525 km/s [2]
| General subfields within astronomy and astrophysics | |
|---|---|
light-minute 60 light-seconds 1.799 × 1010 m average distance from the Earth to the Sun is 8.317 light-minutes light-hour 60 light-minutes
= 3600 light-seconds1.079 × 1012 m semi-major axis of Pluto's orbit is about 5.473 light-hours light-day 24 light-hours
= 86400 light-seconds2.590 × 1013 m Sedna is currently 0.52 light-days from the Sun light-week 7 light-days
= 604800 light-seconds1.813 × 1014 m The Oort cloud is thought to extend between 41 and 82 light-weeks out from the Sun
The particle horizon (the boundary of the observable universe) has a radius of about 14 Gpc (46.5 thousand million light-years).
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