. System of astrometrical databases of Pulkovo observatory. Russian version of this page Previous page . List of basic publications on Solar system bodies . Mercury . Venus . Mars and its satellites . Jupiter and its satellites . Saturn and its satellites . Uranus . Neptune . Pluto . Minor Planets . Comets . Articles containing description of observation reduction technique . General characteristics of observations .

... Since planets are expected to form out of the material in disks around young stars, the formation of a planet will thoroughly alter the structure of the circumstellar disk of their host star, forming significant gaps in the radial distribution of matter around the star. Additionally, processing of solids (annealing/crystallization) and changes in the overall gas/dust ratio are thought to happen during the planet formation process and are believed to alter the observational signature of the disk. ...

delay-doppler image of the Maxwell Montes region of Venus, taken using the S-Band (2380 MHz or 12.6 cm) radar transmitter and the 305m dish at the Arecibo Observatory in Arecibo, Puerto Rico in June of 1988. The horizontal resolution is about 2 km. ... This delay-doppler radar image shows craters near the North pole of Mercury. The resolution of this image is about 15 km. ...

Transits are key to our understanding of exoplanets. In this talk, I will describe a novel technique we have developed to measure the shape and rotation of exoplanets from their Kepler transit light curves. ... This rapid rotation causes their shapes to become oblate. ... I present the first search for rotationally oblate gas giants in the Kepler dataset, and a tentative detection for the oblateness of Kepler-39b, a brown dwarf in a 21-day period orbit. ...

... Cloud" CALDWELL 14 MESSIER 34 MESSIER 45 CALDWELL 41 DEEPSKY "Large Mag. Cloud MESSIER 79 MESSIER 38 MESSIER 42 MESSIER 36 MESSIER 37 MESSIER 35 SAO 234480 MESSIER 41 MESSIER 44 CALDWELL 53 CALDWELL 92 NGC 3377 CALDWELL 91 NGC 4261 MESSIER 68 CONSTELLATION Coma Berenices CALDWELL 99 CALDWELL 94 CALDWELL 77 CALDWELL 80 MESSIER 51 MESSIER 04 MESSIER 13 MESSIER 92 MESSIER 06 MESSIER 07 MESSIER 08 ... This is" "short for 'Quasi stellar objects.' ...

... Forthcoming Occultations of Astrometric Radio Sources by Planets , IVS 2010 General Meeting Proceedings, p.320­324 http://ivscc.gsfc.nasa.gov/publications/gm2010/lvov.pdf Forthcoming Occultations of Astrometric Radio Sources by Planets Victor L'vov, Zinovy Malkin, Svetlana Tsekmeister Central Astronomical Observatory at Pulkovo of Russian Academy of Sciences Contact ... Occultations of Astrometric Radio Sources by Planets Table 1. ...

... Space Res., 12, 265, 1992 planetary magnetic dipole: Mizutani, H., et al., ... Astrobiology, 7, 167, 2007 CME induced H+ ion pick-up loss at 0.05 AU for ` Hot Jupiters ' HD209458 b Mass loss ~1011 g/s even for weak CMEs Mmax strong magn. protection in reality Exoplanet magnetospheres - importance of magnetodisk Relatively large amount of observed Hot Jupiters (27%): survival of close-in giants indicates their efficient protection against of extreme plasma and radiation conditions ...

... Home Observing This Month?s Sky This MonthтАЩs Sky тАУ February 2016 . ... This MonthтАЩs Sky тАУ April 2016 . This MonthтАЩs Sky тАУ March 2016 . This MonthтАЩs Sky тАУ February 2016 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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 ). ...

NAUTICAL ASTRONOMICAL YEARBOOK for 2016 (in Russian) . Foreword . ... NAY) is the daily visual geocentrical equatorial ephemerides of brightest navigational stars ? the Sun, the Moon, four major planets (Venus, Mars, Jupiter, Saturn) and of the 69 brightest stars, and the time of the rising and setting of the Sun and the Moon, the time of the beginning and the end of civil and navigational twilights, the azimuths of the upper limb of the Sun on rising and setting. ...

... малой планете . ... на основании решения от 9 мая 2001 года . Комитета по наименованию малых планет . ... что малая планета, . зарегистрированная в международном каталоге малых планет . под N 11438 и имеющая предварительное обозначение 1973 QR1, . ... ZELDOVICH . ... Якова Борисовича Зельдовича . ... 11438) Zeidovich = 1973 QR1 . ... Малая планета (11438) Zeidovich открыта 29 августа 1973 г. Т.M.Смирновой в Крымской астрофизической обсерватории. ... Циркуляр Малых Планет N 42672, 2001. ...

... CONTACT . ... Planned space experiments promise a considerable increase in the detections and statistical knowledge arising especially from transit and astrometric measurements over the years 2005­15, with some hundreds of terrestrial-type planets expected from transit measurements, and many thousands of Jupiter-mass planets expected from astrometric measurements. ... To request a printed copy, please contact Britt Sjoeberg (bsjoeber@eso.org) . ...

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On the front of exoplanet modelling: ! ... Knudson et al.; etc.. ... First applications to our Solar System Planets The standard picture: · · · Internal structure of Jupiter and Saturn based on the three-layer picture Equation of state of Saumon-Chabrier for H/He (semi-analytical) Equations of state for metals ... /SESAME (Los Alamos) (relevant regime P ~ 1 Mbar - 100 Mbar: interpolated between experiments and asymptotic limits in the very high density, fully ionised limit) ...

This is a new popup window - close it when you are done . Submitted by Robert Halstead on 06/30/2015 23:19:35 . Planets Passing in the Night, June 30, 2015 . ... Captured using my Canon 6D at the prime focus of my 8-inch f/10 Celestron Schmidt-Cassegrain telescope. ISO 1600, 0.6 seconds for the image at the left; and ISO 400, 1/50 second for the image at the right. Images captured between 8:57 and 9:02 pm EDT on June 30, 2015. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Databases (NSDC) of the Natural Planetary Satellites. Sources and references of the data . NSDC: Database of astrometric observations of Natural Planetary Satellites . ... The observational data are taken from various sources: . ... The catalogue of observations of the Martian satellites published by Morley T.A. A catalogue of ground-based astrometric observations of the Martian satellites, 1877-1982, Astronomy and Astrophysics Supplement Series. 1989. vol. 77. n. 2. p. 209-226. ...

... Archive 2003: . From RATAN-600 observations with a matrix radiometer at a wavelength of 1 cm indications have been found of existence of relativistic electrons in the magnetosphere of Jupiter with energy of about 100 MeV, which demands revision of mechanisms of acceleration of cosmic rays of the solar wind with energy of a few MeV. ... Archive . ...

... Shevchenko Vladislav Vladimirovich . ... Position: Head of Department of Lunar and Planetary Research, Sternberg State Astronomical Institute, Moscow University, Doctor of Physics and Mathematics. ... L. Johnson Space Center - Lunar and Planetary Institute. ... Sternberg State Astronomical Institute, Moscow University, Universitetsky 13, Moscow, 119899 , Russia, . ... V.I.Chikmachev, S.G.Pugacheva and V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Moscow, chik@sai.msu.ru ...

NASA JOHNSON SPACE CENTER ORAL HISTORY PROJECT BIOGRAPHICAL DATA SHEET NAME: James W. "Jim" Head III O RAL H ISTORY: 2 June 2002 EDUCATIONAL BACKGROUND: B.S., Washington and Lee University, Lexington, VA, 1964 Ph.D. in Geology, Brown University, Providence, RI, 1969 NASA EXPERIENCE: Bellcomm, Inc., ... The Global Topography of Mars and Implications for Surface Evolution," Science, 284, 1495-1503, 1999. ... Res. ... A. Basilevsky and J. Head, "The Geologic History of Venus: A Stratigraphic View," Jour. ...