61. Solar System - Definition Of Solar System By The Free Online Dictionary, Thesaur My surprise reached a climax, however, when I found incidentally that he was ignorant of the Copernican Theory and of the composition of the Solar System. http://www.thefreedictionary.com/solar system

62. SmallBodies.Ru: Catalogue Of The Solar System Small Bodies Orbital Evolution Provides information about asteroids of the Aten, Apollo and Amor groups and periodic comets. In English and Russian. http://smallbodies.ru

Catalogue of the Solar System Small Bodies Orbital Evolution Catalogue of the Solar System Small Bodies Orbital Evolution English Project Asteroids catalogue Comets catalogue Project news Asteroids catalogue update. 159 new objects added. Information about existing objects updated. Number of approaches to inner planets increased by 24. Number of approaches to the Earth increased by 20. Asteroids catalogue update. 299 new objects added. Information about existing objects updated. Number of approaches to inner planets increased by 58. Number of approaches to the Earth increased by 55. Date input interface was improved at the page of orbital elements calculation of the selected asteroid or the comet The page for orbital elements calculation of the selected asteroid or the comet at any date and time between 1800 and 2206 was added. Date format was fixed in the English version of the website. The page for viewing project news was added. Asteroids group selection feature added on page of catalogue update history . Now it is also has the information about number of approaching asteroids. Page for viewing histogram added. It shows the distribution of

63. Astronomy 161: The Solar System In this semester of Astronomy we shall concern ourselves primarily with the Solar System. As an introduction to that, we shall consider the historical development of our modern http://csep10.phys.utk.edu/astr161/lect/index.html

Astronomy 161 The Solar System In this semester of Astronomy we shall concern ourselves primarily with the Solar System. As an introduction to that, we shall consider the historical development of our modern picture of the Solar System. Introduction A Sense of Time and Scale in the Universe Precursors to Modern Astronomy Overview of the Sky and Planets ... ASTRONOMY 162 LECTURES Next Back Top Home Help

64. Asteroid Introduction Background information, details on selected asteroids, image gallery. http://www.solarviews.com/eng/asteroid.htm

65. Solar System Index Page Come on board and explore the planets with Mrs. Strange's Second Graders at Loogootee Elementary West http://www.siec.k12.in.us/~west/proj/space/index.html

Come on board and explore the planets with Mrs. Strange's Second Graders at Loogootee Elementary West Teaching Links Lesson Plans Activites Collaboration Art Activities Feedback Resources Student's Links Explore the Planets - slide show written by 2nd graders Space Quiz test your knowledge about the planets-written by 2nd graders. Solar System Treasure Hunt - learn more about the planets and improve your reasearch skills. Space Riddles - read and laugh at our "out of this world " jokes-written and illustrated by 2nd graders. Word Games - print and do a wordsearch or crossword puzzle Ask the Expert- ask astronomy students at Lick University in California, your questions about the Solar System. Check the answers to questions already asked. Back Home Next Thank you for visiting! Created 2-13-99 Last Updated 4-30-99 E-mail comments Mrs. Strange's Second Grade dstrange@loogootee.k12.in.us Web Design by phale@loogootee.k12.in.us Please visit the Elementary West Homepage and Projects that Connect.

66. Solar System Exploration: Planets: Asteroids Basic description, overview of asteroid science. http://solarsystem.nasa.gov/planets/profile.cfm?Object=Asteroids

67. Views Of The Solar System Sun Pictures, animations, general information and data. http://www.solarviews.com/eng/sun.htm

68. Sun's Rotation Electronic book with technical information about the sun and the solar system. http://sun22y51.narod.ru

Sun's rotation. Rotation of the Sun =22,14y, star free download maps photo foto pictures gif, earth planet of solar system space world figures. The Sun has a north and south pole and rotates on its axis, just as the Earth does. The Sun makes a complete revolution about the axis every 22,14 years, unlike Earth which rotates at all latitudes every 24 hours. The Sun rotates in the same direction as Earth. The sun makes a full revolution (rotation) about the axis for 22 years 51 day 3 hours (plus a minus of 15 days). The sun is a firm and liquid body. It has a firm nucleus, around of a nucleus a hot liquid mantle, from above a firm crust. Rotation of the Sun about the axis for 1 revolution is equal 22,14 years, instead of 1 year, 2 years, 6 years or even 11 years, as at a full cycle s. a. (solar activity). Really the Sun so slowly rotates, you ask? There can not be it. Delirium any. Nonsense. And it will be a good question. On which you receive full, with all proofs, the answer in my electronic book. The sun is shrouded, hot and burning gas, which external layers at height of solar spots (s. s.) rotate around of the Sun faster, than a spots. Solar spots make a full revolution around of the Sun for 27,5 days (average value). It is the fact. More precisely on equator for 25 days, and leaving from equator speed solar spots decreases and at poles it is equal approximately from 31 days about 36 days. Therefore scientists have decided, that the Sun rotates every 25 days at the equator and takes progressively longer to rotate at higher latitudes, up to 35 days at the poles. The sun is valid an attraction, therefore it is shrouded in gas which is drawn to the Sun. This heavy gas is fuel and consists basically from H2 and is fuel.

69. Venus Introduction From Views of the Solar System . http://www.solarviews.com/eng/venus.htm

70. Uranus Views of the Solar System, Calvin J. Hamilton. http://www.solarviews.com/eng/uranus.htm

71. Solar System Pakistan - Solar Energy, Solar Power, Solar Panels Solar power system, solar energy, solar electric system. We are installing and selling solar products in Pakistan. http://www.solarsystem.pk/

72. Saturn Views, animations, general information and data of the planet and its satellites. http://www.solarviews.com/eng/saturn.htm

73. Ephemeris.com Solar System ephemeris.com Astronomy, Time and Motion in the Solar System and Universe http://www.ephemeris.com/solar-system.html

ephemeris.com Solar System NASA/JPL Home Ephemeris Solar System History Software Books Links ... Feedback ephemeris.com - A website devoted to information about time and motion in the universe. The Solar System: The Solar System planet order is easy to remember with this classic phrase: "My very educated mother just sent us nine pickles" Sun Mercury Venus Earth ... Sedna Sagittarius A-Star - The Milky Way's Galactic Center (Image NASA et al.) Our Solar System revolves around the center of the Milky Way Galaxy (the Galactic Center). A large Black Hole lies at this center. An unusual concentration of stellar matter surrounds this Black Hole. This was discovered in February 1974 by Bruce Balick and Robert Brown, and named Sagittarius A* (pronounced "Sagittarius A star"). Sagittarius A* was determined to be the center of the Milky Way, about 26,000 light years from our Solar System. We know the center is a Black Hole from observations of nearby suns in very fast orbits around it, showing high gravitational attraction. In 1999, knowing that Sagittarius A* was the center of the Milky Way Galaxy allowed astronomer Mark Reid and associates at the Harvard-Smithsonian Center for Astrophysics to calculate that our Solar System takes approximately 226 million years to revolve around the Galactic Center. On 1 April 2004, astronomers announced they had accurately measured the size of Sagittarius A* with the Very Long Baseline Array (VLBA) radiotelescope, with stations spread across the Earth. Sagittarius A* appears to be the diameter of the Earth's orbit around the Sun (93 million miles). The central Black Hole is about 14 million miles in diameter, but astronomers have not yet been able to measure it accurately. They expect to find its size by monitoring shorter and shorter radio wavelengths, until they see light from Sagittarius A* fall off at a wavelength that corresponsds to the size of the Black Hole at its center. For more on the Galactic Center, see

74. Neptune Views, animations, general information and data of the planet. http://www.solarviews.com/eng/neptune.htm

75. Mercury Detailed description of Mercury with images. http://www.solarviews.com/eng/mercury.htm

76. Our Solar System - Enchanted Learning Software Our Solar System; learn about the Sun, the planets, moon, asteroids, comets, meteoroids, the Kuiper belt, Oort cloud, and the Milky Way. http://www.enchantedlearning.com/subjects/astronomy/solarsystem/

Advertisement. EnchantedLearning.com is a user-supported site. As a bonus, site members have access to a banner-ad-free version of the site, with print-friendly pages. Click here to learn more. Join Enchanted Learning Site subscriptions last 12 months. Click here for more information on site membership. As low as $20.00/year (directly by Credit Card Site members have access to the entire website with print-friendly pages and no ads. (Already a member? Click here. Our subscribers' grade-level estimate for this page: 4th - 5th Table of Contents Enchanted Learning All About Astronomy Site Index Our Solar System Stars Glossary ... Astronomers Our Solar System All About the Solar System Origins The Ecliptic Where is our Solar System? ... Learning Activities All About Our Solar System Our solar system consists of the sun, planets, dwarf planets (or plutoids), moons, an asteroid belt, comets, meteors, and other objects. The sun is the center of our solar system; the planets, over 61 moons, the asteroids comets meteoroids and other rocks and gas all orbit the Sun The Planets The nine planets that orbit the sun are (in order from the Sun): Mercury Venus Earth Mars ... Jupiter (the biggest planet in our Solar System)

77. Mercury  L  Mercury Facts, Pictures And Information. From The Nine Planets multimedia tour of the solar system. http://www.nineplanets.org/mercury.html

Mercury The Winged Messenger Mercury is the closest planet to the Sun and the eighth largest. Mercury is slightly smaller in diameter than the moons Ganymede and Titan but more than twice as massive. orbit : 57,910,000 km (0.38 AU ) from Sun diameter : 4,880 km mass : 3.30e23 kg In Roman mythology Mercury is the god of commerce, travel and thievery, the Roman counterpart of the Greek god Hermes , the messenger of the Gods. The planet probably received this name because it moves so quickly across the sky. Mercury has been known since at least the time of the Sumerians (3rd millennium BC). It was sometimes given separate names for its apparitions as a morning star and as an evening star. Greek astronomers knew, however, that the two names referred to the same body. Heraclitus even believed that Mercury and Venus orbit the Sun, not the Earth. Since it is closer to the Sun than the Earth, the illumination of Mercury's disk varies when viewed with a telescope from our perspective. Galileo 's telescope was too small to see Mercury's phases but he did see the phases of Venus Mercury has been now been visited by two spacecraft

78. Solar System: Launch Your Idea Into Orbit Make your company shine. Solar Systemâ„¢ gives you and your staff the power to control your message and control your design. When it's this easy, be confident; your site is up http://solarsystemhq.com/

79. USGS Astrogeology: Mercury US Geological Survey Mercury page, with links to Geological information about the planet. http://astrogeology.usgs.gov/SolarSystem/Mercury/

Mercury Radius: km Mass: kg Orbital Period: 87.97 Earth days Rotation Period: 58.65 Earth day Distance from Sun: 57.91 million km Mercury is the closest planet to the Sun. Web Pages with Information about Mercury Astrogeology Research Program Messenger Global Mosaic of Mercury Browse the Solar System : Interactive version of our popular poster Mapping the Solar System Browse the Geologic Solar System : Interactive version of our popular poster Geology of the Solar System Planetary Maps : Searchable comprehensive listing of published planetary maps, with links to digital versions when available. Geologic Mapping : Download digital geologic maps, learn about our geologic mapping efforts, and access geologic mapping resources from the Planetary Geologic Mapping Program Gazetteer of Planetary Nomenclature : Information about and access to the official International Astromical Union approved names for planetary features Cartographic Coordinates and Rotational Elements of the Planets and Satellites - IAU Working Group IAU CCRE Working Group, information, publications, and references, including tables of the accepted values for the size, shape, and rotations of the planets and satellites

80. Jupiter Views, animations, general information and data of the planet and its satellites. http://www.solarviews.com/eng/jupiter.htm

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z

Page 4     61-80 of 100    Back | 1  | 2  | 3  | 4  | 5  | Next 20