... These other worlds are the moons of our Solar System , of which there are approximately 170 in orbit around our planets.Some of these moons are very interesting, and have diverse and unique features, very different to our barren, heavily cratered Moon .Jupiter, the largest planet in our solar system has the most moons of any planet with known 64 moons in orbit.The four ... Ganymede, the largest moon in the Solar System thought to have oceans located underneath its icy surface.( ...

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• Kepler-10b: world of lava oceans? | Astronotes
• A Summer Night?s Stargazing | Astronotes
• How to see exoplanets! | Astronotes

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

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• Solar System Extrema
• APOD: January 31, 1996 - Planets Around Sun-Like Stars
• APOD: 2001 May 18 - HD 82943: Planet Swallower

... The main subroutine (processOdf, Fig 1 ) loops over all exposures and instruments (MOS1/MOS2) present in the input directory (looking for event list files). ... badpix on the events list, adding the BADPIX extension. ... Then (Fig 1 ) all the event list files created (one per CCD/node) are merged by evlistcomb , creating one events list per mode (IMAGING, TIMING). Finally evselect is called on the resulting events list(s), with (CCDNR==$node$ccd) && GTI(merged GTI file,TIME) for all CCD/nodes. ...

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... Particularly strange is the green auroral ring caused by ionized oxygen high in the Earth's atmosphere. M57: The Ring Nebula . ... Now known as M57 or NGC 6720, the gas cloud became popularly known as the Ring Nebula. Standing on the Moon . ... During this Apollo 11 mission, Neil Armstrong (the first person to walk on the moon) and Buzz Aldrin landed on the Moon while Michael Collins circled in the Command Module above. ... Venus: Just Passing By . ... Why visit Venus first? ...

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My research efforts have focused on three areas which are: . More than 200 extrasolar planets have been discovered around relatively nearby stars, primarily through the Doppler line shifts owing to the reflex motions of their host stars, and more recently through transits of some planets across the face of the host stars. ... Gravitational microlensing provides a novel technique to look for planets around lens stars, and this is the only technique currently capable of detecting Earth-mass planets. ...

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• HDF-S Main Page

... It would be the ultimate backpacking trip: an exploration of Saturn's rings. ... The partly hidden Sun glinting off the field of ring chunks, the gentle gravitational symphony of collective motion that carries both chunks and explorers safely around the planet, the feeling of being surrounded yet freely floating -- all disguise the fact that everything is whirling around Saturn at tens of thousands of kilometers per hour. ... Dark side of the ringed planet. ... The rings are enormous. ...

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• ASP: A Good Definition of the Word "Planet": Mission Impossible?
• ASP: Miranda: A Jigsaw Puzzle World
• ASP: Astronomy Behind the Headlines

.

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Just beyond the main asteroid belt there exists a population of small objects orbiting the Sun at the same heliocentric distance of Jupiter. The combined action of Jovian and Solar gravity creates a stable dynamical haven for these objects near the so-called Lagrangian equilibrium points, in honour to the French mathematician Joseph Louis Lagrange who first demonstrated their existence and stability. ... Soon after its discovery it was realized that this asteroid is, in fact, a Mars Trojan. ...

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• Armagh Observatory Virtual Visit
• Armagh Observatory
• Astrodynamics 101

... View from a tower . ... in the launch table . One of 2 Energia-Buran launch pads converted from N-1. There is also one more Energia launch pad called Versatile Stand-Start Complex. ... The giant N-1 tower still exists. Moreover, it looks like most photos of Buran on the launch pad were shot from this tower. One of 2 N-1 launch pads. N-1 pads were later converted for Energia-Buran program. Proton launch pad. Mobile tower is moved away from the rocket. ...

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• The VSM: Launch sites and launch pads

. INSTITUTO ISAAC NEWTON . Casilla 8-9, Correo 9, Santiago, Chile . e-Mail: inewton@terra.cl . Contact address in St.Petersburg: resh@astro.spbu.ru . Money Order since Feb 2001

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12. start:main [SAI Virtual Observatory - Wiki]

13. Correlating the Next Set of Data Using the Existing Schedule File

14. Solar System Extrema

15. Pulkovo Observatory

16. http://www.eso.org/public/news/eso1310/kids/

17. Phil Plait's Bad Astronomy: Misconceptions: Planet X and Nancy Lieder

18. Melted remains of Cassegrain spectrograph are on the remains of the observing

19. OptInt PmWiki : Main / Home Page

20. td12_16jan08