Search results
15 hours, 57 minutes, and 59 seconds
- A day on Neptune lasts precisely 15 hours, 57 minutes, and 59 seconds, according to the first accurate measurement of its rotational period made by Erich Karkoschka from University of Arizona, Tucson.
www.astronomy.com/science/clocking-neptunes-spin/Clocking Neptune's spin | Astronomy.com - Astronomy Magazine
People also ask
Does Neptune have a rotational period?
Does Neptune rotate?
How did NASA find the rotation of Neptune?
How long does a day on Neptune take?
Neptune's rotation period was determined using measurements of radio emissions and Voyager 2 showed that Neptune had a surprisingly active weather system. Six new moons were discovered, and the planet was shown to have more than one ring.
Like Uranus, whose magnetic axis is tilted about 60 degrees from the axis of rotation, Neptune's magnetosphere undergoes wild variations during each rotation because of this misalignment. The magnetic field of Neptune is about 27 times more powerful than that of Earth.
1 day ago · Neptune, third most massive planet in the solar system and the eighth and outermost planet from the Sun. Neptune has 14 moons, only two of which were discovered before Voyager 2’s visit in 1989, and a system of rings, which were unconfirmed before Voyager.
- Neptune was discovered on September 23, 1846. It is the second planet to be found using a telescope. Although Johann Gottfried Galle and Heinrich L...
- Neptune has 14 moons (natural satellites). Before Voyager 2's flyby of the planet, Neptune's only known moons were Triton and Nereid. Neptune's moo...
- Neptune’s outer atmosphere is composed predominantly of hydrogen and helium, contributing to 98 percent of the atmospheric molecules. Most of the r...
- Neptune is the only giant planet that is not visible without a telescope. It has an apparent magnitude of 7.8 and is approximately one-fifth as bri...
- Neptune’s color is a very vivid, bright blue, presumably an effect of the presence of methane and an unidentified atmospheric gas. With a small tel...
Mar 11, 2024 · Neptunian Magnetosphere. Model GSFC-O 8. Dipole field strength: 0.142 Gauss-Rn 3 Dipole tilt to rotational axis: 46.9 degrees Longitude of tilt: 288 degrees (IAU convention) Dipole offset: 0.485 Rn Surface (1 Rn) field strength: ~0.1 - 0.9 Gauss. Rn denotes Neptunian model radius, here defined to be 24,765 km.
Jun 30, 2011 · A day on Neptune lasts precisely 15 hours, 57 minutes, and 59 seconds, according to the first accurate measurement of its rotational period made by Erich Karkoschka from University of...
Jul 3, 2011 · July 3, 2011. A day on Neptune lasts 15 hours, 57 minutes and 59 seconds, according to the first accurate measurement of its rotational period. University of Arizona (UA) planetary scientist...
Orbit and Rotation. One day on Neptune takes about 16 hours (the time it takes for Neptune to rotate or spin once). And Neptune makes a complete orbit around the Sun (a year in Neptunian time) in about 165 Earth years (60,190 Earth days). Sometimes Neptune is even farther from the Sun than dwarf planet Pluto.
