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6.706 × 10 8 miles: The perihelion of Saturn's orbit is about 1.25 light-hours light-day 24 light-hours = 86 400 light-seconds 25 902 068 371 200 m: 2.590 × 10 10 km: 1.609 × 10 10 miles: Voyager 1 is about 0.94 light-days from the Sun (as of April 2024) light-week 7 light-days = 604 800 light-seconds 181 314 478 598 400 m: 1.813 × 10 11 km ...
A wide variety of sources [5] [6] [7] define LEO in terms of altitude.The altitude of an object in an elliptic orbit can vary significantly along the orbit. Even for circular orbits, the altitude above ground can vary by as much as 30 km (19 mi) (especially for polar orbits) due to the oblateness of Earth's spheroid figure and local topography.
Since that time, many states have installed more markers every 0.25 mile, every 0.2 mile, or in some metro areas, every 0.1 mile. Some historic and scenic routes – such as along the Blue Ridge Parkway in North Carolina and Virginia and the Overseas Highway of the Florida Keys – use mileposts to mark points of interest or (in the cases of ...
Quarter-mile or 1 ⁄ 4 mile may refer to: A dragstrip competition or vehicle test in motorsport, where cars or motorcycles compete for the shortest time from a standing start to the end of a straight 1 ⁄ 4 mile (0.40 km) track; The 440-yard dash, a sprint footrace in track and field competition on a 440 yards (1,320 ft; 400 m; 0.25 mi) oval
In extremely clean air in Arctic or mountainous areas, the visibility can be up to 240 km (150 miles) where there are large markers such as mountains or high ridges. However, visibility is often reduced somewhat by air pollution and high humidity. Various weather stations report this as haze (dry) or mist (moist).
The main units of length (inch, foot, yard and international mile) were the same in the US, though the US rarely uses some of the intermediate units today, such as the (surveyor's) chain (22 yards) and the furlong (220 yards). At one time, the definition of the nautical mile was based on the surface area of the Clarke ellipsoid.
Three Mile Island covers an area of 43 acres (17 ha) and is approximately 0.5 miles (0.8 km) long, 0.25 miles (0.4 km) wide, and 1 mile (1.6 km) around. The highest point on the island, a ridge running north to south, is between 50 feet (15 m) and 60 feet (18 m) above the water line.
In the example provided by the US DoE in its final rule, an electric car with an energy consumption of 265 Watt hour per mile in urban driving, and 220 Watt hour per mile in highway driving, results in a petroleum-equivalent fuel economy of 335.24 miles per gallon, based on a driving schedule factor of 55 percent urban, and 45 percent highway ...