Latest Lagrangian point Stories
Last night, the detectors of Planck's High Frequency Instrument reached their amazingly low operational temperature of -273Â°C, making them the coldest known objects in space.
Beginning today, ESA's Planck satellite will carry out a critical mid-course maneuver that will place the satellite on its final trajectory for arrival at L2, the second Lagrange point of the Sun-Earth system, early in July.
The European Space Agency says the commissioning of scientific instruments and subsystems aboard its Herschel and Planck spacecraft has started. The two space observatories were lifted into orbit aboard an Ariane 5 rocket last week from the French spaceport at Kourou, French Guiana.
After a perfect injection by the Ariane 5 launcher on May 14, the critical Launch and Early Orbit Phase (LEOP) for Herschel and Planck has started to wind down, while commissioning of the scientific instruments and subsystems on both spacecraft has begun.
The European Space Agency's Herschel and Planck satellites went into space Thursday aboard an Ariane 5 rocket from the French spaceport in French Guiana. The dual space telescopes were headed toward a spot called L2 -- the second Lagrange point -- where they will operate in different orbits. L2 is a local gravitational point that is fixed in the Earth-sun system and is situated on Earth's night side, the ESA said.
There's a buzz in the Main Control Room as the launch of Herschel and Planck gets closer. The two satellites are scheduled to launch together at 15:12 CEST, May 14, on an Ariane 5 from ESA's Spaceport in Kourou, French Guiana. Several critical events are planned leading up to and after launch.
WASHINGTON, May 5 /PRNewswire-USNewswire/ -- Two missions to study the cosmos, the Herschel and Planck spacecraft, are scheduled to blast into space May 14 aboard the same Ariane 5 rocket from the Guiana Space Center in French Guiana.
GREENBELT, Md., April 10 /PRNewswire-USNewswire/ -- Two identical NASA spacecraft are preparing to enter a point in the universe that may eventually answer the question of how our moon was born. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The spacecraft duet, called Solar Terrestrial Relations Observatory, or STEREO, are nearing a zone known as the Lagrangian points.
NASA's twin STEREO probes are entering a mysterious region of space to look for remains of an ancient planet which once orbited the Sun not far from Earth. If they find anything, it could solve a major puzzle--the origin of the Moon.
Three new objects locked into roughly the same orbit as Neptune -- called "Trojan" asteroids -- have been found by researchers.
Lagrangian Point -- In Lagrangian mechanics, a Lagrangian point (or L-point) is one of five positions in space where the gravitational fields of two bodies of substantial but differing mass combine to form a point at which a third body of negligible mass would be stationary relative to the two bodies. Bodies at the L-point will not move relative to the parent bodies if they are not perturbed by other gravitational forces. They are sometimes also referred to as libration points. The...
Orbit -- An orbit is the path that an object makes around another object under the influence of some force. The classical example is that of the solar system, where the Earth, other planets, asteroids, comets, and smaller pieces of rubble are in orbit around the Sun; and moons are in orbit around planets. These days, many artificial satellites are in orbit around the Earth. Understanding orbits There are a few common ways of understanding orbits. -- As the object moves, it...
Saturn's moon Helene -- Helene is a moon of Saturn, discovered by Laques and Lecacheux in 1980 from ground-based observations. It is co-oribtal with Dione and located in its leading Lagrangian point (L4) and hence is sometimes referred to as "Dione B". ----- Orbital radius: 377,400 km Diameter: 33 km (36 x 32 x 30) Mass: Unknown Orbital period: 2.7369 days Orbital inclination: 0.2 ----- NASA Learn more on this topic from eLibrary here:
Saturn's moon Calypso -- Calypso is a moon of Saturn discovered by Pascu, Seidelmann, Baum and Currie in 1980 from ground-based observations. Calypso is co-orbital with the moon Tethys, and resides in Tethys' trailing Lagrangian point (L5). The moon Telesto resides in Tethys' leading Lagrangian point. ----- Orbital radius: 294,660 km Diameter: 26 km (34 x 22 x 22) Mass: Unknown Orbital period: 1.8878 days Orbital inclination: 0 ----- NASA Learn more on this...
Telesto is a small Trojan moon of the sixth planet from the sun, Saturn. Telesto, which was discovered in 1980 by Smith, Reitsema, Larson and Fountain, is one of around 200 natural satellites in Saturnian orbit. It is one of only 62 moons that have a secure orbit, and only one of 53 named moons orbiting the ringed planet. Telesto was officially designated S/1980 S 13 and was officially named in 1983 after the Greek sea goddess of the same name. This moon is also designated as Saturn XIII...