... Spacecraft . ... To space by cannon? Finally, the deep space explorers --spacecraft which break away from the Earth's gravity . ... The "Luna" series of the USSR conducted 7 soft landing of unmanned probes, two of them with wheeled robotic "Lunokhods," and two of those missions returned samples to Earth. Others spacecraft have visited the major planets of the Solar system. ... The Mariner series have explored Venus and Mars--and Mariner 10 even reached Mercury, for three separate encounters! ...

NASA Press Release Text - June 24, 1996 GALILEO READY FOR CLOSE FLYBY OF JUPITER'S BIGGEST MOON Now residing in orbit around Jupiter, NASA's Galileo spacecraft is primed for its first close flyby of Jupiter's largest moon, Ganymede, at 2:29 a.m. EDT on June 27, 1996. ... In the days just before and after the Ganymede flyby, Galileo's other studies will include a search for auroral activity on Jupiter's nightside and observations of other Jovian moons: Io, Europa and Callisto. ...

In a game of ping-pong, suppose a paddle moves at 20 miles per hour and hits a ball with 20 mph in the opposite direction. ... In the new problem, a ball moving at -40 mph hits a non-moving surface; if the collision is elastic (no energy lost), that ball returns with the same speed but in the opposite direction, i.e. its velocity reverses sign. ... Something very similar happens when a spacecraft with velocity v passes close to a moving planet and is deflected. ...

... Planets . ... Earth Satellites . ... Looking in the direction of the constellation Cygnus the Swan and launched by NASA in 2009 is the Kepler Space Observatory.Many previous missions searching for exoplanets mainly detected large giant planets, like large hot Jupiters (it is easier to detect larger planets).However KeplerтАЩs main objective is to search for much smaller planets located in a habitable zone which is not too close nor too far from their star; planets which may be just like our Earth. ...

. Home . News . Gallery . Events . Twitter . Press Releases . Links . Contact Us . Calendar . Press & Web Coverage . Previous . Next . List . Taken 30th November by John McConnell. It shows the planetary conjunction of Venus and Jupiter at their closest, with the Moon below. Friday, 2 January 2009 23:14 . International Year of Astronomy, Ireland National Node . [Back To Top] .

... 8, ``Celestial Mechanics'', 2002 CCD observations of planetary satellites and occultations and close approachments of stars by asteroids with 26­ inch refractor of Pulkovo observatory T. P. Kiseleva, I. S. Izmailov, M. A. Mozhaev Pulkovo Observatory, St. Petersburg, Russia ST--6 CCD camera has been used with 26-- inch Refractor at Pulkovo for ob­ servations of ... These estimates are \Sigma0:015 arcsec and \Sigma0:014 arcsec for X and Y correspondingly. ...

... In 1610, Galileo turned his telescope to the heavens and discovered that the planet Jupiter had four bright moons. ... Jupiter's Rings . ... Unlike Saturn's bright rings which are composed of chunks of rock and ice, Jupiter's rings appear to consist of fine particles of dust. ... Exploring Saturn's Rings . ... Saturn's spectacular system of bright rings has been the subject of study and wonder since Galileo first turned his telescope on the ringed planet in 1610. ... M57: The Ring Nebula . ...

... Galileo Probe . The Galileo spacecraft was designed to study Jupiter's atmosphere, satellites, and surrounding magnetosphere for two years. ... From there, Galileo will spend more than five years traveling to Jupiter, where it will become the first spacecraft to make direct measurements from an instrumented probe within Jupiter's atmosphere. ... This image, taken by the Hubble Space Telescope, shows the predicted site at which the Galileo Probe will enter Jupiter's atmosphere on December 7, 1995. ...

With this knowledge of orbits, we are ready to plan a trip to Mars. ... The spacecraft will already have the 107,000 kilometers per hour (66,500 miles per hour) speed of Earth, whereas Mars moves at only 86,900 kilometers per hour (53,900 miles per hour). ... A speed of about 42,000 kilometers per hour will be enough to escape the Earth's gravity and, when added to the Earth's orbital speed around the Sun, put the spacecraft on a Hohmann transfer orbit to the Red Planet. ... 1,570,000 . ... Earth . ...

КОСМИЧЕСКИЙ КАЛЕНДАРЬ ЯНВАРЯ 2000 ГОДА . ... Jan 01 - Year 2000 . Jan ?? ... Jan 01 - Asteroid 1996 AX1 Closest Approach To Earth (0.702 AU) . ... Jan 03 - Asteroid 3745 Petaev Closest Approach To Earth (1.862 AU) . ... Jan 05 - Asteroid 1999 VO11 Near-Earth Flyby (0.218 AU) . ... Jan 08 - Comet P/1998 VS24 (LINEAR) Closest Approach To Earth (2.915 AU) . ... Jan 12 -[Image][Dec 02] Asteroid 1999 WA2 Closest Approach To Earth (1.100 AU) . ... Jan 14 - Mercury Occults 53 Sgr (6.9 Magnitude Star) . ...

... An artificial comet holds secrets to Earths life . ... Astronomers recently discovered that Scholz's star passed close to the Sun 70,000 years ago. Wouldn't its gravity have sent Oort Cloud comets raining into the inner planets? ... COMETS | OORT CLOUD . Based on the number of long-period comets that enter the inner solar system, astronomers estimate there are probably trillions of them in the Oort Cloud. Get instant access to subscriber content on Astronomy.com! ... Discover | ...

JENAM 2011, European Week of Astronomy and Space Science, 4-8 July 2011, St. Petersburg, Russia Forthcoming mutual events of planets and astrometric radio sources Z. Malkin, V. L'vov, S. Tsekmejster Pulkovo Observatory, St. Petersburg, Russia Abstract. ... Close angular approaches of planet to astrometric radio sources During close angular approaches of Solar system planets to astrometric radio sources, the apparent positions of these sources shift due to relativistic effects. ...

... ESO Acronyms . ... Quasars and Black Holes . ... Black Hole at the Centre of our Galaxy . ... This view shows a simulation of how a gas cloud that has been observed approaching the supermassive black hole at the centre of the galaxy may break apart over the next few years. This is the first time ever that the approach of such a doomed cloud to a supermassive black hole has been observed and it is expected to break up completely during 2013. ... Milky Way : Galaxy : Component : Central Black Hole . ...

. Previous slide . Next slide . Back to first slide . View graphic version .

. Album : asv-album :: Travels to distant places and countries :: 1999/09 Florence, Rome (Italy) :: 18/09 Roma . Up . << Prev . Vatican museums entrance. Alas, museums were closed when I came. Next >> . Created with the tool album script a tool written by D. Madison on Tue Jun 23 14:47:14 2015 .

Has the LMC Had Close Encounters With Other Satellite Galaxies? ... integrate backwards in a Galactic potential (NFW) · Monte Carlo by drawing velocities from distributions given by uncertainties LMC ­ SMC: LMC - SMC · Carina, Draco , Fornax, and Ursa Minor never get closer to the LMC than ~60 kpc · Carina, Draco , Fornax, and Ursa Minor never get closer to the LMC than ~60 kpc · Sculptor was ~33 kpc away ~ 0.1 Gyr ago LMC - Scl · Carina, ...

... Currently, there is very little information on comets which are active beyond the orbit of Jupiter. ... Previous observations conducted by our team with the SAO RAS 6-m telescope showed that some of these comets have extended tails dissimilar to the tails of comets forming at close heliocentric distances. ... We for the first time measured the linear polarization of scattered emission for the two distant comets C/2010 S1 (LINEAR) and C/2010 R1 (LINEAR) at heliocentric distances of 5.9-7.0 au. ...

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

Proposal Identification No.: R2225 Date Received: 2006-Apr-18 18:23:13 Technical Page Proposal Type: General Category: Observation Category: Total Time Requested: Prop osal Title: ABSTRACT: Urgent Planetary Radar Solar System 6.0 Hours Urgent Proposal for Arecibo Radar Imaging of near-Earth Asteroid 2006 GY2 We propose radar imaging of recently-discovered near-Earth asteroid 2006 GY2 during its close approach within 0.017 AU on 2006 May 15-16. ... Part of the observing run. ...

... mag . ... arcsec . ... deg . ... 2015-04-06 23:14:05 . ... Observation . ... Pulkovo . ... mag(j2)-mag(j1), too close to planet . ... Izmailov I.S. processed by . Izmailov I.S. ...