P-34675 Range : 5.9 million km. ( 3.6 million miles ) Orbital Speed : 40,000 km/hr. or 25,000 mi/hr. The most recently discovered satellites of Neptune, 1989N5 and 1989N6, are shown in this Voyager 2 image. Their high orbital speed, in combination with the a 15 sec. exposure, has caused faint streaks. 1989N3 was discovered in early August, 1989. 1989N6 is distinguished by an orbit that is inclined 4.5 degrees to Neptune's equatorial plane, the only new satellite in the Neptune system to have noticably inclined orbit. 1989N5 cicles Neptune every 7.5 hours at a ditance of 25,000 km. or 15,500 miles above the cloud tops. 1989N6 orbits Neptune 23,00 km. or 14,000 miles from cloud tops every 7.1 hours ARC-1989-A89-7023

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Photo of Half Model of a Screw Steamer - Public domain dedication

Hi-Lo, Bossier City, Louisiana. Photogrpah by John Margolies

hr. The most recently discovered satellites of Neptune, 1989N5 and 1989N6, are shown in this Voyager 2 image. Their high orbital speed, in combination with the a 15 sec. exposure, has caused faint streaks. 1989N3 was discovered in early August, 1989. 1989N6 is distinguished by an orbit that is inclined 4.5 degrees to Neptune's equatorial plane, the only new satellite in the Neptune system to have noticably inclined orbit. 1989N5 cicles Neptune every 7.5 hours at a ditance of 25,000 km. or 15,500 miles above the cloud tops. 1989N6 orbits Neptune 23,00 km. or 14,000 miles from cloud tops every 7.1 hours ARC-1989-A89-7023

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Summary

P-34675 Range : 5.9 million km. ( 3.6 million miles ) Orbital Speed : 40,000 km/hr. or 25,000 mi/hr. The most recently discovered satellites of Neptune, 1989N5 and 1989N6, are shown in this Voyager 2 image. Their high orbital speed, in combination with the a 15 sec. exposure, has caused faint streaks. 1989N3 was discovered in early August, 1989. 1989N6 is distinguished by an orbit that is inclined 4.5 degrees to Neptune's equatorial plane, the only new satellite in the Neptune system to have noticably inclined orbit. 1989N5 cicles Neptune every 7.5 hours at a ditance of 25,000 km. or 15,500 miles above the cloud tops. 1989N6 orbits Neptune 23,00 km. or 14,000 miles from cloud tops every 7.1 hours

Voyagers

In 1977, Voyager 1 and 2 started their one-way journey to the end of the solar system and beyond, now traveling a million miles a day. Jimmy Carter was president when NASA launched two probes from Cape Canaveral. Voyager 1 and its twin, Voyager 2, were initially meant to explore Jupiter, Saturn, and their moons. They did that. But then they kept going at a rate of 35,000 miles per hour. Each craft bears an object that is a record, both dubbed the Golden Records. They were the product of Carl Sagan and his team who produced a record that would, if discovered by aliens, represent humanity and "communicate a story of our world to extraterrestrials."