The Mars Flag has a different design on the reverse side. obverse side of flag . ... The orbit lines on the obverse cross the Sun on the lower half of the flag and appear to go behind the Sun on the upper half of the flag. The reverse side has the orbits lines continuing around the Sun on the upper half of the flag. ... The Mars Flag reverse side is a continuation of the obverse side and not just a different design on the back and not a mirror image of the obverse. Main Flag Background Color . ...

... Дни открытых дверей к юбилею САО РАН (12-14 апреля 2016 г.) . Международная конференция "Dark Ages and White Nights (Spectroscopy of the CMB)" (20-24 июня 2016 г.) . ... Международная конференция MULTI-SPIN GALAXIES - 2016 (26-30 сентября 2016 г.) . Международная астрономическая конференция "Физика звезд: от коллапса до коллапса" (3-7 октября 2016 г.) Архив . ... Подробнее.. ... 10.02.16 . ... БТА в реальном времени . ... Цейсс-1000 в реальном времени . ... Последнее обновление: 22/03/2016 ...

Io ( "EYE oh" ) is the fifth of Jupiter 's known satellites and the third largest; it is the innermost of the Galilean moons. ... Discovered by Galileo and Marius in 1610. ... Io's surface is radically different from any other body in the solar system. ... The material erupting from Io's vents appears to be some form of sulfur or sulfur dioxide. ... Analysis of the Voyager images led scientists to believe that the lava flows on Io's surface were composed mostly of various compounds of molten sulfur. ...

... They had expected to see impact craters like those on the other terrestrial bodies and from their number per unit area to estimate the age of Io's surface. ... This may have been the most important single discovery of the Voyager missions; it was the first real proof that the interiors of other "terrestrial" bodies are actually hot and active. ... A nalysis of the Voyager images led scienties to believe that the lava flows on Io's surface were composed mostly of various compounds of molten sulfur. ...

. This color image was obtained with Fuji color film (Super Plus 400) in focal plane of the 70-cm reflector (F = 27 m) at Lisniki Observatory by A.M.Evtushevsky. Data and time of observation: April 27, 1997, 21:25 LT. Comet-Earth distance: 1.7 a.u. Time of exposure: 10 min. Field of view : 3 minutes of arc. Distance between shells, in average: 15 000 km. Diameter of bright coma in the picture center: of about 5 000 km. Last updated: January, 2005.

Jupiter is the largest of the nine planets, more than 10 times the diameter of Earth and more than 300 times its mass. ... The mean density of Earth is 5.245 times that of water. The pull of gravity on Jupiter at the top of the clouds at the equator is 2.4 times as great as gravity's pull at the surface of Earth at the equator. ... It is tipped about 11њ to Jupiter's axis of rotation, similar to Earth's, but it is also offset from the center of Jupiter by about 10,000 kilometers (6,200 miles). ...

Astronotes Armagh Planetarium's Stellar Blog! ... Stars . ... Space Flight . ... Some 13.7 billion years ago, a mere millionth of a second after the Big Bang, the first hydrogen and helium nuclei condensed out of a hot, dense soup of quarks and gluons. ... In the very last few kilometres some of the light was scattered by a myriad of water droplets (containing hydrogen nuclei which had existed almost since the Big Bang) slowly descending through the air following a rainshower. ...

... A really beautiful animation of Jupiter and two of its satellites sent to us by Carl O'Beirnes, J09 Balbriggan Observatory: . With Jupiter now starting to climb at our latitudes I set back up the C14 to take a few images. ... Thank you Carl! More to come from Jupiter this week: dark spot just appearing in the South hemisphere (Sunday 19th July), and Gallilean satellites o ccultations visible from Ireland starting Friday 24th July. ... International Year of Astronomy, Ireland National Node . ...

... Shadows Across Jupiter . ... Solar System Portrait . ... Reflected Aurora Over Alaska . ... Some auroras can only be seen with a camera. ... Grand spiral galaxies often seem to get all the glory, flaunting their young, bright, blue star clusters in beautiful, symmetric spiral arms. ... Comet Lemmon near the South Celestial Pole . ... The Arms of M106 . ... The spiral arms of bright galaxy M106 sprawl through this remarkable multiframe portrait, composed of data from ground- and space-based...

. Amaltea. Amaltea, the satellite of Jupiter. Sizes 135 У 85 У 75 km. The average distance from Jupiter is 181 300 km. Back .

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... The Magazine . ... Observing . ... Back Issues . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Heading back to Jupiter's moons . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter...

... 29a. Satellite looking up . ... 29e. Explorers of distant space . Space Index . This groups includes about 200 communication satellites ("comsats") scattered in synchronous orbits above the Earth's equator. ... 6 Earth radii (42,000 km or 26,000 miles), these satellite make one orbit per day, ( sidereal day of 23 h 56 min--see here ) and therefore as the Earth turns, they always stay above the same ground station. ... Next Satellite Class: #29e Missions to Planets and to Distant Space . ...

... The PlutoCCD CCD is a video rate, low noise, 2048 x 1024 element, 9-micron or 12-micron pixel back-illuminated CCD. ... PlutoCCD 2048 x 1024 Element Split-Frame Transfer CCD . ... A picture of a Split Frame Transfer version of the PlutoCCD CCD is shown in Figure 2-1. ... As can be seen in Table 2-2, which documents the performance measured for the design, the 12-micron PlutoCCD CCD achieves less than 5 electrons rms. noise, full well exceeding 240,000 electrons, and linearity better than one percent...

Outer Natural Satellites Orbits Ephemerides. ... Choose type of the ephemeride: . ... Values of the orbital elements [ output e sin( ), e cos( ), sin(i) sin( ), sin(i) cos( ) ] . Distances between the osculating orbits . ... Choose Second Satellite (for the distances) U17 - Sycorax U18 - Prospero U19 - Setebos U20 - Stephano U21 - Trinculo U22 - Francisco U23 - Margaret U24 - Ferdinand . ... Enter initial date (years) . Enter final date (years) . ... Enter upper limit of frequency deg/year . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Accueil Cette nuit, observez Jupiter qui occulte une –їtoile ! ... A la une . ... Jupiter, qui occulte une –їtoile brillante, ce n'est pas banal et c'est cette nuit. ... Pour patienter, vous pourrez observer, –Љ 1h12, l'impact d'une m–їt–їorite qui s'est –їcras–їe sur Jupiter le 20 juillet dernier et qui sera visible pr–Rs du p–?le sud sous forme d'une tache sombre (–Љ lire d–Rs le 25 ao–?t dans Ciel et Espace de septembre). ...

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... 6-50, 8-00, 8-40, 9-20, 9-45, 10-05, 10-20, 10-25, 10-38, 11-00, 11-35, 11-50, 11-55, 12-25, 13-00, 13-30, 13-55, 14-15, 14-45, 15-25, 15-35, 16-00, 16-45, 17-15, 17-45, 18-50 . ... Ispravnaya: 6-10, 8-45, 12-00, 13-20, 16-45, 18-30 . ... Nalchik: 6-12, 8-00, 9-29, 11-15, 11-31, 11-50, 12-00, 12-38, 13-00, 13-15, 13-41, 14-50, 15-45, 16-08, 16-35, 17-00, 17-30, 18-30, 18-35, 18-52, 18-55, 19-35, 21-00, 23-00 . ... Vladikavkaz: 9-29, 12-00, 13-00, 14-50, 15-45, 17-30, 18-30, 23-00 . ...

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The on-line diagnostics of the SW channel characteristics operative through back-scattering ionospheric sounding (BSS) is based on adiabatic relations of diagnostic signal characteristics and channel in operation under ionospheric parameter variations (Kurkin V.I , Nosov V.E., Ponomartchuk S.N.et. al. SW radiochannel operative dignostics. ...

... 3.20 0051-038 00 51 35.6700 -03 50 11.000 T 3C26 9. ... 8.60 3.70 2.60 1.60 0430+052 04 30 31.6021 +05 14 59.620 A 3C120 3.40 3.60 3.30 2.50 0433+295 04 33 55.0000 +29 34 14.000 T 3C123 130. ... 3.3 1.0 1005+077 10 05 22.0200 +07 44 58.600 T 3C237 6.30 2.50 0.50 1008+066 10 08 22.7000 +06 39 12.000 T 3C238 2.9 1040+123 10 40 06.0009 +12 19 14.971 B 3C245 3.20 1.80 0.00 1111+408 11 11 53.1000 +40 53 41.000 T 3C254 13. ... 2.50 0.00 0.00 1553+202 15 53 57.1900 +20 13 00.000 T 3C326. ...

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