... Armagh Observatory, 24th March 2009: The International Space Station ( ISS ) has recently become the second brightest object in the night sky тАФ even brighter than the planet Venus, and second only to the Moon. Evenings will provide the chance of a spectacular view, if the sky is clear, as for the next few days the orbit of the ISS around the Earth repeatedly takes it over Ireland. ... At its best, it is now the second brightest object in the night sky. ...

Еще в разделе: (Показать все результаты (>3129) - star.arm.ac.uk/ )

• International Space Station

... Bad Astronomy . ... Bitesize Astronomy . ... The Nine Planets . ... It isn't the first extrasolar planetary system to be discovered; the first planet outside our own solar system orbiting a normal Sunlike star was discovered in 1995. ... Still, this is the first solar system ever found besides our own to definitely have more than one planet. This is an important discovery: most people all along have been assuming that multiple planet systems exist, but we had never actually seen one. ...

Еще в разделе: (Показать все результаты (>490) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bad News
• Phil Plait's Bad Astronomy: Bitesize Tour of the Solar System

... Planets and Brown Dwarfs . ... Mission Definition . Ask anyone on the street to give an example of a planet, and they'll consider you a bit dim. ... Finally, if you ask "What is the exact scientific definition of 'planet'?", it turns out that nobody can answer it, because there really isn't one. ... The word itself means "wanderer" in Greek, and other cultures generally have words for "planet" with a similar meaning. So why isn't that good enough for us today? ...

Еще в разделе: (Показать все результаты (>1341) - www.astrosociety.org/ )

• ASP: Sharing the Universe
• ASP: Up, Up, and Away
• ASP: Guest Observer

Astronomy Picture of the Day . ... Credit Copyright: Jerry Lodriguss ( Catching the Light ) Explanation: Big, bright, and beautiful, a Full Moon near perigee, the closest point in its elliptical orbit around our fair planet , rose on August 10. ... At a perigee distance of a mere 356,896 kilometers, August's Full Moon was the closest, and so the largest and most super, of the three Full Moons nearest perigee in 2014 now popularly known as supermoons . ... Comet Meets Moon and Morning Star . ...

Еще в разделе: (Показать все результаты (>126377) - www.astronet.ru/ )

• Journal "Peremennye Zvezdy"
• XWare > APOD

Astronotes Armagh Planetarium's Stellar Blog! ... Moon . ... Earth Satellites . ... By admin October 4, 2012 Posted in: Moon . A tiny second moon.This is Phobos (27 km across) seen over Mars by ESA's Mars Express (Image credit:ESA) . ... They concluded that at any given time Earth probably has a second moon. ... But, just perhaps, briefly the Earth had a second natural satellite seen by thousands of people.Remember the spectacular fireball witnessed over the UK and Ireland on 21 September 2012 ? ...

Еще в разделе: (Показать все результаты (>2811) - www.armaghplanet.com/ )

• How Venus will kill you in less than 10 seconds | Astronotes
• Rings Around an Asteroid | Astronotes
• Kepler 36b and c: Too Close for Comfort | Astronotes

Venus under the clouds. ... Venus is the second from the Sun and the nearest to the Earth planet of solar system. ... As for Venus, it has the densest atmosphere, the smallest rotation around the axis and the least eccentricity of the orbit Venus is the only planet whose own rotation is opposite it?s rotation around the Sun. ... The radiolocation survey of Venus by the soviet station "Venera - 15" and "Venera - 16" brought out in 1984 in the planets satellite`s orbit shoued the tarces of long walls. ...

Еще в разделе: (Показать все результаты (>98) - www.space.vsi.ru/ )

• saturne
• Kopernike
• merkurie

... 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. ...

Еще в разделе: (Показать все результаты (>411) - zebu.uoregon.edu/ )

... Assignments 4, 5 and 6 all involve the imaginary world of Ziggy. ... Each week, you should write a short executive briefing to Captain Howard, explaining to her what you have learned from that week's data. ... A 500 word limit applies to each briefing you submit. You will submit three briefing papers (due dates below): one for each data release. ... First briefing due (Assignment 4). 2nd data set released. ... Second briefing due (Assignment 5). 3rd and final data set released. ...

Еще в разделе: (Показать все результаты (>690) - www.mso.anu.edu.au/ )

• Deimos orbiting Mars

Today's APOD | ... Editor's choices for the most educational Astronomy Pictures of the Day about scientists: . ... The marble platform at the bronze statue's feet is embedded with a map showing the positions of the planets, sun, moon and stars on the memorial's dedication date, 100 years after Einstein's birth in 1879. ... Kepler was one of the few vocal supporters of Galileo 's discoveries and the Copernican system of planets orbiting the Sun instead of the Earth . ... Index | ... About APOD | ...

Еще в разделе: (Показать все результаты (>6875) - www.sai.msu.su/ )

• APOD: 2014 August 14 - Surreal Moon
• APOD: 2001 March 8 - Bright Venus
• APOD: January 31, 1996 - Planets Around Sun-Like Stars

... Kepler is a mission designed to detect and characterize Earth-sized planets around solar-like stars. The sizes of the planets are determined from the decrease in light from a star that occurs during planetary transits, and the orbital period is determined from the repeatability of the transits. ... These goals are accomplished by continuously and simultaneously monitoring a single field of 140,000 stars for evidence of brightness changes caused by transits of Earth-sized or larger planets. ...

Еще в разделе: (Показать все результаты (>20126) - www.stsci.edu/ )

• http://www.stsci.edu/stsci/meetings/planets/abs/prog31.html
• Research Interests
• Institute for Planets and Life

... Search . ... Astrophysics Group . Research . ... Research and Instrumentation . ... While this seems an extraordinary endeavour, in light of what we have learnt about Solar System planets, only a handful of key ingredients are required to start characterising an exoplanet. ... The NGTS project is a partnership between the University of Cambridge, Queen?s University Belfast, University of Warwick, University of Leicester, Observatoire de Geneve, DLR (Berlin) and Universidad Catolica de Chile. ...

Еще в разделе: (Показать все результаты (>1416) - www.mrao.cam.ac.uk/ )

... The motion of a planet around the Sun or of a scientific satellite around Earth follows different equations (though a connection exists), but in many respect it resembles that of the stone. ... Kepler's law states: . ... Illustrating Kepler's 2nd law: . ... As an example, let the drawing on the right represent the orbit of an Earth satellite, and let AB and CD be the portions of the orbit covered in 3 hours near apogee and near perigee, respectively. ... Gravity can also provide energy. ...

Еще в разделе: (Показать все результаты (>782) - www.iki.rssi.ru/ )

• Neptune
• Venus
• Why do people want to explore Mars

... Astronomers have used a new technique to see the faint light from a planet that is orbiting a distant star. ... Instead, astronomers found them by looking for telltale clues, such as how the light from a star dims when an exo-planet passes in front of it, or how it wobbles because of the pull of an exo-planet s gravity. Astronomers can learn a lot about exo-planets that move in front of their stars. This is because the starlight passes through the exo-planet s atmosphere on its way to Earth. ...

Еще в разделе: (Показать все результаты (>65417) - www.eso.org/ )

• Planet Found in Nearest Star System to Earth | ESO
• Exoplanet Caught on the Move | ESO
• High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)

... 9a. Earth orbits Sun? . ... 10a. Scale of Solar Sys. ... If the mean distance of Earth from the Sun is 1 AU ("Astronomical Unit"), then that of Venus is 0.723 AU, of Mercury 0.387 AU and that of Mars is 1.524 AU. ... By noting (1) where on the Sun's disk is the crossing seen, (2) timing its duration at two far-apart points on Earth, and (3) comparing the times, one can calculate the distance to Venus and from it the scale of the solar system. ... One occurred in 1639--too early. ...

Еще в разделе: (Показать все результаты (>7300) - www.cosmos.ru/ )

• More on Kepler's Second Law
• Kepler's Second Law
• The Path of the Sun, the Ecliptic

. Astronomers have discovered dozens of planets that orbit around a single member of a wide stellar duo. Although the second star in this view would look like a bright star, this simulation shows a twin-star sunset. NASA/JPL-Caltech/R. Hurt (SSC)

Еще в разделе: (Показать все результаты (>5681) - www.astronomy.com/ )

• Bright planets meet at dusk | Astronomy.com
• Planets, orbits, and comets are somewhat round. Is there an underlying
• A planet is forming in an Earth-like orbit around a young star | Astronomy.com

God Science Forum Message . ... God and Science | ... Pluto Is Not A Planet, But A Moon Of Neptune. ... Pluto Is Not a Planet, but a Moon of Neptune . 60 years ago, at 1947, the late Mohammed Ali Hassan Al-Hilly, said in his book: (The Universe and the Quran), that Pluto is not a planet but a moon of Neptune. ... He said: " Astronomers, however, think that Pluto is a planet, but I say it is merely a moon of Neptune, and actually it is not a planet. ... www.astronomy.net . About Astronomy Net | ...

Еще в разделе: (Показать все результаты (>1419) - www.astronomy.net/ )

• Moon, Planets And Aurora, Oh My! - an Astronomy Net Article
• Astronomy articles, forums, listings, and other resources about Astronomy.
• Alignment Of 2 Planets - an Astronomy Net Christstar Forum Message

The Bringer of Peace V enus is the second planet from the Sun and the sixth largest. ... S ince Venus is an inferior planet, it shows phases when viewed with a telescope from the perspective of Earth. ... T he pressure of Venus' atmosphere at the surface is 90 atmospheres (about the same as the pressure at a depth of 1 km in Earth's oceans). ... Craters on Venus seem to come in bunches indicating that large meteoroids that do reach the surface usually break up in the atmosphere. ... Earth .. ...

Еще в разделе: (Показать все результаты (>7983) - www.arcetri.astro.it/ )

• Educator's Guide to The Inverse Square Law
• Neptune
• The Discovery of the Galilean Satellites

... The study of extra solar planets will be one of the most important areas of research in astronomy in this century. ... The first planets outside the solar system were found in 1992 around the millisecond pulsar PSR B1257+12 by Alex Wolszczan at the Arecibo Observatory . ... Three space missions based on this principle (MOST, COROT and Kepler ) have already been launched or approved, and have the last one at least has the potential to find Earth-sized planets. ... SIM ( NASA ) is one of such missions...

Еще в разделе: (Показать все результаты (>3257) - www.naic.edu/ )

• The Pleiades
• Why can I only see six of the ``Seven Sisters''?
• The Large Magellanic Cloud

... This year's eclipse is unique in duration. ... Although, at the present time, there are 6 solar observatories belonging to leading space agencies in orbit around the Earth, the eclipse of 22 July, 2009, will only be seen by two of them: the Russian CORONAS-PHOTON satellite equipped with TESIS telescopes and Japan's HINODE satellite fitted with an XRT space telescope. ... TESIS will be the first of the two devices (and the very first on Earth) to witness the solar eclipse. ...

Еще в разделе: (Показать все результаты (>71) - www.tesis.lebedev.ru/ )

• Project's diary
• The X-ray Solar Eclipse

adapted from The Meaning of Life by Monty Python . ... standing on a planet that's . evolving and revolving at 900 miles an hour. That's orbiting at 19 miles a second, . ... Are moving at a million miles a day . In an outer spiral arm, at 40,000 miles an hour, . of the galaxy we call the Milky Way. ... It's 100,000 light-years side to side, . ... of millions and billions . In this amazing and expanding universe. ... 12 million miles a minute, and that's the fastest speed there is. ...

Еще в разделе: (Показать все результаты (>3467) - hea-www.harvard.edu/ )

• Week 2
• The AstroStat Slog Blog Archive [ArXiv] 3rd week, Jan. 2008
• Y2K -- Y!2K?