It is the second largest moon of Pluto, being slightly larger than Nix.Hydra was discovered along with Nix by the Pluto Companion Search Team in June 2005. If it is not a real resonance, there is a hypothesis that originated such a near- resonance before the current outward migration of Charon. Hydra's surface is probably covered with water ice.
Pre-discovery data from Hubble observations in 2002-3 inferred that Nix was the brighter moon. The 3 moons of Pluto are Nix, Hydra, and Charon the largest moon.
The Hubble images from 2002 to 2003 implied that Nix the larger moon. At the time of discovery, Hydra was about 25 percent brighter than its sister moon Nix, which led to the assumption that its diameter was some 10 percent bigger. Maintaining it is therefore by the periodic local fluctuation of 5 % in the gravitational field strength through the circulation of Pluto and Charon around each other.
Hydra (moon) Hydra is the fifth nearest and second- largest known moon of the dwarf planet Pluto. After the discovery in the summer of 2005, with images from the Hubble Space Telescope, the two newly discovered moons were observed in September 2005 by the Keck and the
Hydra's surface is probably covered with water ice.
Hydra is lighter by 25 % than Nix, suggesting a 10 - 15% indicating larger diameter, assuming an equal albedo of the two moons.
Pluto only has one moon and i don't think it is even a moon its a dwarf planet along with Pluto What is the 3 names of Plutos moons?
"Stern, Alan; Hal Weaver (JHU APL), Max Mutchler (STScI), Andrew Steffl (SwRI), Bill Merline (SwRI), Marc Buie (Lowell Observatory), John Spencer (SwRI), Eliot Young (SwRI), and Leslie Young (SwRI) (15 May 2005).
Observed within Hydra's bright regions is a darker circular structure with a diameter of approximately 10 kilometers (5 miles). (2006). Temporary names in H. A. Weaver; S. A. Stern, M. J. Mutchler, A. J. Steffl, M. W. Buie, W. J. Merline, J. R. Spencer, E. F. Young and L. A. ... Pluto's outermost moon, Hydra, was named for a legendary Greek … Generally listed in increasing distance from Pluto.
Hydra is the fifth nearest and second- largest known moon of the dwarf planet Pluto. Hydra orbits the common center of mass of the Pluto -Charon system in a prograde, slightly elliptical orbit at an average distance of 62,745 km ( 64,780 km distance from Pluto's center, about 56.18 Pluto radii ).
Hydra is likely analogous to the theory on the origin of the Moon, the product of large collision of a predecessor of Pluto with another pluto large body of the Kuiper Belt, which formed the moon, Charon, while debris fell into outer orbits around Pluto, this follows the moon Hydra formed.
Hydra and Nix, however, were included in the monitoring program afterwards. Its diameter is estimated to be 61-167 kilometers. For spectral investigations Hydra was in contrast to the reddish Pluto in a similarly neutral gray color as Charon and Nix.
The orbital period is close to a 1:6 orbital resonance with Charon, the deviation is 0.3 %.
In addition, the names Nix and Hydra correspond to the initials of the spacecraft
It will then both moons capture with a resolution of better than 200 m / pixel, only slightly worse than Charon (200 m / pixel).
Observed within Hydra's bright regions is a darker circular structure with a diameter of approximately 10 kilometers (5 miles).
Steffl, A. J.; Mutchler, M. J.; Weaver, H. A.; Stern, S. A.; Hydra is the outermost known natural satellite of Pluto.It was discovered along with Nix in June 2005, and was visited along with Pluto by New Horizons in July 2015.
Its diameter is estimated to be 61-167 kilometers.
Hydra is a natural satellite of Pluto, with a diameter of approximately 51 km (32 mi) across its longest dimension.
Nix and Charon orbiting Pluto on even narrower lanes.
If the albedo equal to that of Charon ( 0.372 ) may be, this would amount to 61 km, with an albedo of 0.04, corresponding to the darkest Kuiper Belt objects, 167 km.
Compared to Pluto and its large moon Charon, at 2,360 and 1,210 kilometers in diameter respectively, Nix (inner moon) and Hydra (outer moon) are tiny, estimated to be only 40 to 160 kilometers across. Hydra is the outermost known moon of Pluto.
It was discovered along with Nix in June 2005, and was visited along with Pluto by New Horizons in July 2015. You should be localizable 90 days prior to the passage and you will then record their tracks more closely to ensure their position in the flyby. Young. The exact value of the diameter could not be determined so far as the albedo (albedo ) of the surface is unknown. Hydra is somewhat brighter than its companion moon Nix, and so might be the larger of the two, but this is not proved.
Although its size has not been directly measured, calculations based on its brightness give it a diameter of between 61 km, if its
Hydra, Pluto's outermost moon, is about 31 miles (50 kilometers) in diameter.
Hydra is the farthest moon of Pluto.It was found along with Nix in June, 2005 by the Hubble Space Telescope's Pluto Companion Search Team, which is composed of Hal A. Weaver, Alan Stern, Max J. Mutchler, Andrew J. Steffl, Marc W. Buie, William J. Merline, John R. Spencer, Eliot F. Young, and Leslie A.
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