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 ? ...

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• Saturn 5 | Astronotes
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• Solar System | Astronotes - Part 4

... 5.12.1999 . ... Credit: Calvin J. Hamilton Explanation: Rhea is the second largest moon of Saturn , behind Titan , and the largest without an atmosphere. ... Rhea 's rotation and orbit are locked together (just like Earth's Moon ) so that one side always faces Saturn. ... Rhea 's leading surface is much more heavily cratered than its trailing surface. ... Publications with keywords: Saturn's Moon - Rhea . Publications with words: Saturn's Moon - Rhea . ... Crescent Rhea Occults Crescent Saturn . ...

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• Астронет > Rhea: Saturns Second Largest Moon
• Rhea: Saturn's Second Largest Moon
• Астронет > Rhea: Saturn's Second Largest Moon

Atlas . Saturn XV - 1980S28 . Atlas, the second of Saturn's known satellites, orbits near the outer edge of the A-ring and is about 40 by 20 kilometers (25 by 15 miles) in size. It is probably a shepherd satellite for Saturn's A-ring. Atlas was discovered by R. Terrile in 1980 from photographs taken by Voyager during its encounter with Saturn. Atlas Statistics . ... Mean density (gm/cm^3) . ... Rotational period (days) . Orbital period (days) . ... Credit: Calvin J. Hamilton) . ...

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• Leap Second Alert!
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... December 5, 1999 . Rhea: Saturn's Second Largest Moon . Credit: Voyager , NASA ; Copyright: Calvin J. Hamilton . Explanation: Rhea is the second largest moon of Saturn , behind Titan , and the largest without an atmosphere. ... Rhea 's rotation and orbit are locked together (just like Earth's Moon ) so that one side always faces Saturn. A consequence of this is that one side always leads the other. ... About APOD > . ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

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• APOD: 2003 June 8 - Rhea: Saturn's Second Largest Moon
• APOD: October 14, 1995 - Rhea: Saturn's Second Largest Moon
• Europa

О»ї . Publiц© le 03/01/2015 par Gilles Santacana . Lieu : SцЁte, Hц©rault (34). Matц©riel de prise de vue : Boц®tier Olympus OM1 + tц©lц©objectif Zuiko 200 mm f4. Commentaires : Pendant la totalitц© de l'ц©clipse totale de Lune du 27 septembre 1996, Saturne cцґtoie notre satellite naturel. 3 secondes de poses, film Kodak Elite 200 iso.

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... Several frames taken and best selected saturn _0p15s_g_205d.fits TARGET = ' Saturn ' / target EXPTIME = 0.15 / exposure time ( seconds ) FILTER = ' (1) g (400-530) ' / filter DATE-OBS = ' 2010-03-31T04 :31:09' / date of observation (UT) saturn _0p15s_g_crop_205d.fits TARGET = ' Saturn ' / target EXPTIME = 0.15 / exposure time ( seconds ) FILTER = ' (1) g (400-530) ' / ...

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• http://www.astro.louisville.edu/shared_skies/archive/select/planets/jupiter/20121104/notes.txt
• http://www.astro.louisville.edu/shared_skies/archive/select/ngc/ngc1514/20121109/log.txt
• http://www.astro.louisville.edu/shared_skies/archive/select/ngc/ngc1499_california/20121121/log.txt

The Second International Meeting on WARNING Mission . Kyiv, Ukraine on April 15-17, 1998. ... PROTOCOL OF THE INTERNATIONAL MEETING ON "WARNING" MISSION . ... Tel/fax . ... 380 44 2262167 +380 44 4443420 Fax : +380 44 4441020 . ... National Space Agency of Ukraine . ... 380 572 451009 and 441127; Fax: +380 572 476506, Telex 311-039 SPACE UA . ... 380 572 448462 Fax: +380 572 476506, Telex 311-039 SPACE UA . ... 380 572 322016 and (home) 306125 fax: +380 572 322293 Telex: 311039 SPACE SU, . ...

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• Second order reduction quantities. Explanations for Computer Ephemeris.
• MISSION WARNING: The Second International Meeting : Protocol

... 2MASS Overview . The 2MASS Sky . Executive Summary of 2MASS Second Incremental Data Products . Point Source Catalog . Extended Source Catalog . ... Distribution Mode for 2MASS Products . Data Release Plan . ... Point Source Catalog (PSC) . Extended Source Catalog (XSC) . ... 2MASS Source Naming Convention . ... General Properties of the Data Release . ... Comparison of Achieved Performance of Second Incremental Release Catalogs with Level 1 Science Specification . ...

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• First Catalog Sources Not in the Second Catalog
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Saturn: The beauty of the rings. Saturn . ... Belongs to the giant planets . It has no definite solid surface. ... The free fall acceleration at the Saturn surface near equator is 9,06 m/s^2 . ... In the centre of the planet the temperature is about 20000K. The satellites . ... The rings of Saturn . ... It is proved that Saturn's rings (as well as the other planet's) are the fragments of the great cloud being near the planet with million kilometres length (see how the rings were formed ). ...

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... Saturn is the sixth planet from the Sun , and the second largest in the solar system . Saturn's most distinctive feature is its ring system . ... Saturn has an internal magnetic field with a dipole aligned with the rotation axis (Ness et al., ... The solar wind and Saturn's rings and satellites supply the particles that are trapped in the radiation belts. ... Between the inner and outer satellites orbits Titan, Saturn's largest moon (larger than the planet Mercury ). ... Res., ...

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• Europa
• Kepler's Second Law
• Oberon

... Kepler's Laws . ... Second Law . 12a. More on 2nd Law . ... Kepler's 2nd law prescribes the way the velocity V of an object orbiting a single center varies around its orbit: . The rate at which the line to the center ("radius vector") covers area does not change around the orbit." As noted in section #12 , this means that the object's velocity V increases when its distance r decreases, and vice versa. ... Because by Kepler's 2nd law, the Earth moves in its orbit a little faster in winter. ...

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• The Second Announcement
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28may15: stereob . ... We took data with the xband receiver while attempts were made to wake up the satellite. ... start 7188.88600 MHz . sweep down 13 KHz . ... they then sent the command sequence (assuming it had locked). this took about 628 seconds . freq range MHz . ... I took 50 KHz bw about 8446.240939 Mhz... just in case.. 2^20 length xform is .25 seconds or 4 Hz resolution . ... the doppler was moving by about 1Hz/sec, so the signal would smear over 1 4Hz freq bin in 4 seconds. ...

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• Global navigation satellites
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University Satellites and . Space Science Education . General information Date and Location Objectives of the meeting Sponsoring Organizations International Advisory Committee Local Organizing Committee Deadlines Addresses Hotels & Accommodation Venue Visas Social Programme . First circular . Second circular . ... Abstract Submission List of submitted abstracts . ... Scientific programme . ... Skobeltsyn Institute of Nuclear Physics, Moscow State University, 2005-2006 . ...

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... 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. ...

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• Follow up from the Second Cross-Border Schools Science Conference |
• Leap Second 2008
• Second Cross-Border Science Conference

... INTERNATIONAL SPACE STATION . VIDEOARCHIVE . THE SECOND PRIME MISSION . TO THE INTERNATIONAL SPACE STATION . 04/30/2001. ... Being launched from Baikonur cosmodrome on April 28, 2001, the Russian Soyuz TM-32 transport spacecraft has been docked with the International Space Station (ISS) following a 2-day free flight in near-earth orbit and upon completion of all the required rendezvous and berthing operations in an automated mode with respect to the Orbital Complex. ... SEA LAUNCH | ...

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• INTERNATIONAL SPACE STATION

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . Sun . ... The Sun's Heartbeat . ... Can a 0.2-second pulse from a magnetar put out as much energy as the Sun does in 250,000 years? ... A giant magnetar flare is incredibly bright and emits as much radiation energy as the Sun does in hundreds of thousands of years. Get instant access to subscriber content on Astronomy.com! ... Much more! ... If you are already registered on Astronomy.com, please log in below. ...

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• I read that once every second, somewhere in the universe a massive star ends
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• New Horizons is about to pass Pluto at 9 miles per second Why won't it stop? |

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

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• Current Satellite Photos
• What should I know for the Second Midterm?
• Astro-2 and the UIT Experiment

... HST . ... Missions . ... Data . ... Future Missions and . ... Missions Office . ... HST Overview . Overview . ... Servicing Missions . ... Cycle 24 Announcement . ... Retrieving HST Data . ... On June 4th, 1998, the HST Secondary Mirror (SM) was reset to place NIC3 in focus for the second NIC3 campaign. ... The post-move focus results (see the focus history table and plot ) showed that the NIC3 focus moved in the desired direction, although a slight offset from the targeted PAM position remained. ...

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• Estimated NIRISS Imaging Sensitivity (S/N = 10 in 10000 seconds)
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• APT: HST Proposal Preparation Environment for the Second Decade

... В книге объединены три повести: "Призрачные провода" ("Phantom wires") Артура Стрингера, "Модные приключения Джошуа Крейга" ("Fashionable adventures of Joshua Creig") Девида Грехема Филлипса и "Второй побег" ("The second elopement") Герберта Флауердью. ...

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