jump to other results. 1  1[countable] a particular attitude towards something; a way of thinking about something synonym viewpoint a global perspective Recent events seem less serious when put into an international perspective.
Low earth orbit is only slightly above the Earth, by outer space standards, 124 - 1240 miles (200 - 2000 km) in altitude. Below 124 miles, orbits rapidly degrade, causing surface impact, and above 1,240 miles or even less, the Earth's radiation belts damage electronic equipment, necessitating special shielding. The region from 1,243 miles altitude to geostationary orbit (35,786 kilometers or 22,236 mi) is known as Medium Earth Orbit.
Venus has an orbit with a semimajor axis of 0.723 astronomical units (108 million kilometers), and an eccentricity of 0.007.Its small eccentricity and comparatively small size of the orbit give Venus the smallest range of aphelion and perihelion distances of the planets, 1.46 Gm.The planet orbits the Sun in 225 days and travels 4.54 AU in doing so, making the average orbital speed 35 km/s.enus has an orbit with a semimajor axis of 0.723 astronomical units (108 million kilometers), and an eccentricity of 0.007.