[permalink] [id link]
* Cassini – Huygens Multimedia: The Clump / Moon Mystery September 5, 2005 ( images of the clumps and / or moons seen around the F ring by Cassini cameras )
from
Wikipedia
Some Related Sentences
Cassini and –
Among the Laboratory's current major active projects are the Mars Science Laboratory mission ( which includes the Curiosity rover ), the Cassini – Huygens mission orbiting Saturn, the Mars Exploration Rovers ( Spirit and Opportunity ), the Mars Reconnaissance Orbiter, the Dawn mission to the dwarf planet Ceres and asteroid Vesta, the Juno spacecraft en route to Jupiter, the Gravity Recovery and Interior Laboratory ( GRAIL ) mission to the Moon, the Nuclear Spectroscopic Telescope Array ( NuSTAR ) X-ray telescope, and the Spitzer Space Telescope.
A second-generation Mariner spacecraft, called the Mariner Mark II series, eventually evolved into the Cassini – Huygens probe, now in orbit around Saturn.
The Cassini – Huygens mission to Titan discovered clouds formed from methane or ethane which deposit rain composed of liquid methane and other organic compounds.
* December 6 – Taiping Rebellion: French minister de Bourboulon arrives at the Heavenly Capital aboard the Cassini.
The Saturn ian moon Mimas ( moon ) | Mimas, photographed by the Cassini – Huygens | Cassini probe in 2005.
Cassini and Huygens
Space probes have been placed into orbit around all the five planets known to the ancients: first Mars ( Mariner 9, 1971 ), then Venus ( Venera 9, 1975 ; but landings on Venus and atmospheric probes were performed even earlier ), Jupiter ( Galileo, 1995 ), Saturn ( Cassini / Huygens, 2004 ), and most recently Mercury ( MESSENGER, March 2011 ), and have returned data about these bodies and their natural satellites.
Newer probes such as Cassini – Huygens and the Mars Exploration Rovers are highly autonomous and use on-board computers to operate independently for extended periods of time.
However, the Cassini – Huygens mission fly-by of Venus in 1999 detected no signs of lightning at all.
The Cassini – Huygens mission, which went into orbit around Saturn in 2004, provided still better views, and allowed more in-depth analysis of the moon, including views of the surface under different lighting conditions.
The apparent closeness of the two moons is an illusion, Janus ( right ) is about 40, 000 km farther from Cassini – Huygens | Cassini than Epimetheus ( left ).
Cassini and /
* Mars Pathfinder, Mars Exploration Rover and the Cassini probe to Saturn use a k of 15 and a rate of 1 / 6 ; this code performs about 2 dB better than the simpler k = 7 code at a cost of 256 × in decoding complexity ( compared to Voyager mission codes ).
The 6. 7-year transit was slightly longer than the six years needed for a Hohmann transfer, but cut the total amount of delta V needed to about 2 km / s, so that the large and heavy Cassini probe was able to reach Saturn, which would not have been possible in a direct transfer even with the Titan IV, the largest launch vehicle available at the time.
Note also that the minimum speed achieved during Saturnian orbit is more or less equal to Saturn's own orbital velocity, which is the ~ 5 km / s velocity which Cassini matched to enter orbit.
( http :// www. ciclops. org / view_event / 178 / Lightning_Flashing_in_Daylight ) Though three visiting spacecrafts – Pioneer 11 in 1979, Voyager 1 in 1980 and Voyager 2 in 1981, failed to provide any convincing evidence from optical observations, in July of 2012 the Cassini spacecraft detected visible lightning flashes, and electromagnetic sensors aboard the spacecraft detected signatures that are characteristic of lightning.
* Cassini ( launched 1997 ), a combined NASA / ESA ( European Space Agency ) mission to Saturn and its moon Titan,
The first two missions of the project were to be a mission to Saturn and its moon Titan, the Saturn Orbiter / Titan Probe, or SOTP ( later Cassini ) and the Comet Rendezvous Asteroid Flyby ( CRAF ), both of which were approved by Congress in 1990.
Polydeuces was discovered by the Cassini Imaging Team on October 24, 2004, in images taken on October 21, 2004, and given the temporary designation S / 2004 S 5.
" The period of this star has been settled by Maraldi and Cassini at 405 days ; but from a mean of the observations of Mr. Pigot, it appears to be only 392, or at most 396-7 / 8 days.
0.155 seconds.