... Go to This section of the glossary . ... APHELION : The point in a planet's orbit where it is farthest from the sun. ... It melts at 83.95 K, and boils at 87.45 K. Many people don't realize that argon makes up a full 1% of our atmosphere, while carbon dioxide is only a fraction of a percent of our atmosphere. ... COMET: An object moving about the sun in an eccentric orbit and composed of materials which, on warming up near the sun, form a "tail" which always points away from the sun. ...

... See you all on February 8th! ... David Lechter, Outreach Chair 2 February 2011 Amateur Astronomers Association of Princeton Mars Rovers Celebrate 7th Anniversary on the Red Planet NASA's twin Mars rovers Spirit and Opportunity surely rank as one of the greatest triumphs in the history of space exploration. ... 4 February 2011 Amateur Astronomers Association of Princeton Opportunity is driving to different vantage points around the steep walled crater and snapping a series of gorgeous Martian vistas....

... click image to view discuss) . ... This is a quick shot of the near-Earth asteroid 2005 YU55 using four consecutive exposures from the Harvard MicroObservatory robotic telescope in Amado, Arizona, on the night of Nov. ... 10, 2015 . This is Comet Lovejoy C/2014 Q2 as it appeared at about 10:30 pm Saturday, Jan. 10, 2015, from my back yard in Belmont, MA, about 5 miles west of downtown Boston. ... Main image: 0.6 second exposure. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Natalya V. Raguzova and Sergei B. Popov . ... We present a compilative catalogue of Be/X-ray binaries and candidates in the Galaxy and in the Large and Small Magellanic Clouds. This catalogue contains 160 sources and provides information on names and spectral types of optical components, distances, on spin characteristics of neutron stars, and on orbital and X-ray properties of binary systems. ... Be/X-Ray Binaries and candidates in the Galaxy . Galactic sources: comments to the Table 1 . ...

Pulkovo NEO Page . ... The main publications are: the Minor Planet Circulars, containing astrometric observations, orbits, ephemerides, new numberings and namings of asteroids and comets; the Minor Planet Electronic Circulars, supplying information on unusual minor planets (including NEOs) and new discoveries. http://neo.jpl.nasa.gov . ... Plenty of information on all NEAs, including their observations at numerous world observatories. http://spaceguard.iasf-roma.inaf.it/ . ...

Next: The Stellar Population in Up: NICMOS Science Previous: NICMOS Coronagraphic Surveys-Preliminary Results . ... Searching around young stars . ... We are using NICMOS to search for very low-mass stellar and sub-stellar companions around nearby, young, main-sequence stars. ... NICMOS, coronagraph, young stars, brown dwarfs . ... We present images of a possible companion, probably a low-mass M star, to the star HD102982 which demonstrates our ability to detect substellar objects. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... News . Science news . ... August 7, 2015 "Rosetta" found a "solar shield" in the tail of Churyumov-Gerasimenko comet . ... August 7, 2015 Astronomers saw how lithium was born during new stellar flares . ... June 1, 2015 Astronomers found "vampire" planet in Andromeda constellation . June 1, 2015 Russian astronomers found "nano" black holes in distant galaxies . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

6 hours in these observations. ... Spectroscopy of white dwarf atmospheres has revealed metal pollution indicative of active accretion of rocky material (Gansicke et al. ... We propose a non-contiguous two-week run of short cadence, high S/N, time-series photometry of bright white dwarfs that we will use to to search for planets and planetary debris orbiting the brightest white dwarfs available from APO as part of SPAMS: the Search for Planets Around post-Main Sequence stars. ...

Next: Imaging by an Optimizing Method . ... A big advantage of this numerical integrator is its stability: the error in the semi-major axis and the eccentricity depends only on the step size and does not grow with an increasing number of time steps. ... As the integration time increases, the numerical results become more contaminated by various errors. ... A new symplectic integrator produces no secular truncation errors in the actions of a Hamiltonian system. ...

National Aeronautics and Space Administration Lyndon B. Johnson Space Center SPACE CENTER ROUNDUP Volume 45 · Number 2 FEBRUARY 2006 New Horizons The first mission to distant planet Pluto is under way after the successful launch of NASA's New Horizons spacecraft from Cape Canaveral Air Force Station, Fla. ... The Roundup office is in Bldg. ... Jefferson D. Howell Fitness Facility in the Gilruth Center is just one aspect of the new JSC Exploration Wellness Program. ... WELL.. ... Roundup 03 ...

... Recent Results . Publications . last 10 years in ADS) . ... This page is designed by A.V. Moiseev . ... The extended gas origin and kinematics in the fading AGN host galaxies" . talk on EWASS-2015, La Laguna, Jun 22-26, 2015) . Related publication: Keel et al. ... Related publication: Afanasiev V.L. et al. ... Related publication: Afanasiev V., Moiseev A. 2011, Baltic Astronomy, 20, 363 see in ADS . ... Related publication: Moiseev et al. 2011, MNRAS, 418, 244 see in ADS . ...

Shematovich, V.I . ... Shematovich, V.I., and Bisikalo, D.V. Kinetic simulation of rarefied gas in the aeronomy problems. ... Shematovich, V.I., Bisikalo, D.V., and Gerard J.-C. Superthermal particles in the planetary atmospheres. ... Shematovich, V.I., Bisikalo, D.V. Nonequilibrium processes in the planetary and cometary atmospheres. A kinetic approach to modeling, . ... Shematovich V.I., Gerard J.-C., Bisikalo D.V., and Hubert B. Thermalization of O(1D) atoms in the thermosphere ( abstract ). ...

... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...