... An alternate model dominated by smaller grains, near the blowout size a~0.5 ЮМm, located at 30-40 AU is also possible but requires the dust to have been produced recently, since such small grains will be expelled from the system by radiation pressure in approximately a few times 102 yr. ...

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During routine astrometry with the 1.0-m to improve the orbit of the Apollo asteroid 2004 CB, the 'asteroid' was found on March 30 to have a short tail! ... it was renamed periodic comet P/2004 CB (LINEAR). ... Back to Previous News . Siding Spring Survey Main Page . ... Follow-up Astrometry with the 1.0-m at SSO . Previous News Items . Anglo-Australian Near Earth Asteroid Survey 1990-96 . ...

... On the base of laboratory simulations (on rotating shallow water) of the formation of spiral arms in galactic gaseous disks, the existence of giant anticyclones in them was predicted. Numerical simulations shown that the vortex structures arise on a linear stage of spiral arms formation simultaneously with the latter. ... Thus second giants structures, after spiral arms, in spiral galactic disks are discovered. ...

. Next: Neutron stars Up: A Tutorial on Radio Previous: A Tutorial on Radio . љ . Neutron stars . The discovery . The Nature letter of February 1968 . Identification with rotating neutron stars . Early searches at other wavelengths . Jon Bell . Thu Dec 19 15:15:11 GMT 1996

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... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Discovery cтАЩest fini ! ... Pour c†йl†йbrer ce dernier vol, la NASA a assembl†й plusieurs films r†йsumant les instants marquant des la derni†иre mission de la navette Discovery : . ...

Next: Star Formation and Stellar Up: Stellar Astrophysics Previous: The Chemical Evolution of . Amir Ahmad and Simon Jeffery have been studying some rare stars known, loosely, as helium-rich subdwarfs. ... Further study showed that PG1544+488 is in fact a double star with both stars having extremely helium-rich surfaces -- the first case known. ... Next: Star Formation and Stellar Up: Stellar Astrophysics Previous: The Chemical Evolution of M.E. Bailey . ...

... Southern . ... Science Activities > PhD Thesis Topics offered by ESO Faculty Members > Thesis Topic: Discovery and characterisation of Pre Main Sequence stars in southern star forming regions . ... Observing with ESO Telescopes . ... ESO-MIDAS . ... Using a robust method to identify Pre-Main Sequence (PMS) stars through their photometric excess in the Hн± band, we have recently studied the star formation history in several star burst clusters in the Galaxy, Small and Large Magellanic Clouds. ...

... The effect is strongest in the most evolved, high-latitude supergiant V5112 Sgr=IRAS19500-1709, which has an extended structured envelope (Figs.1 and 2). In the optical spectrum of this object, the BaII ion lines are split into three components (Figs.3 and 4). ... Thus, we discovered for the first time the enrichment of the stellar envelope with heavy metals produced at the AGB stage. ... Detection of heavy-metal lines in the spectrum of the circumstellar envelope of a post-AGB star. ...

... Plasma Phenomena in the Solar System: Discoveries of Prof. K.I. Gringauz - a view from the XXI century . ... The conference is devoted to the 90-th anniversary of Professor Konstantin I. Gringauz - a pioneer of in-situ plasma measurements in space, who discovered solar wind, plasmapause, and cometopause. ... 1.Physical processes on the Sun and solar wind formation. ... 3.Solar plasma interaction with the Earth and planets; physical processes in magnetospheres. ...

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

Hide Zen home . ... 1./mp03 -c ./test.conf < ./iir/IIR.posting . ... d) Вот структура директорий, которую надо сделать ( test _ir для тестовых IIR ): megera @mira:/ usr / local / discovery / test $ l total 28 drwxrwxr-x 3 megera netadm 4096 Dec 3 00:12 CORE / drwxrwxr-x 2 megera netadm 4096 Dec 2 04:11 logs/ -rwxrwxr-x 1 megera netadm 1450 Dec 3 00:37 mp03* drwxrwxr-x 2 megera netadm 4096 Dec 2 04:11 pubs/ -rw-rw-r-- 1 megera ... набор IIR для разных типов сообщений . ...

Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Top Ten Discoveries of the Phoenix Misson to Mars? by Suzanne Young . ... Lecture Series 2010-2011 . ... 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 . ...

... Комментариев нет 22 августа 2010, 13:58 Blogger , English , Астрономия . ... Neptune will finally complete its first full orbit of the sun since it was discovered in 1846a approximately one year from now, according to NASA estimates. ... Twitter Weekly Updates for 2010-08-21 . ...

Astronomy Picture of the Day . Edmund Halley's Greatest Discoveries . ... 6.07.1996 . ... Born in 1656, he computed in 1705 that a bright comet was periodic and would make another appearance in 1758. The comet appeared as predicted and is now known as Comet Halley . ... Perhaps Halley's greatest discovery, however, was that his contemporary Isaac Newton had discovered a powerful mathematical formulation of gravity. ... July 1996 . ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... These two images of the Jovian moon Thebe were taken by Galileo's solid state imaging system in November 1996 and June 1997, respectively. ... Thebe, whose longest dimension is approximately 116 kilometers (72 miles) across, is tidally locked so that the same side of the satellite always points towards Jupiter, similar to how the near side of our own Moon always points toward Earth. ... The image on the right emphasizes the side of Thebe that faces away from Jupiter (the "anti-Jupiter" side). ...

What follows is a brief list of benchmarks and discoveries that shaped our ideas on atoms and nuclei. ... Discovery of electrons . ... Comparing this to Faraday's results, one could get " Avogadro's number ", the number of (say) hydrogen atoms in one gram of hydrogen--an enormously large number. ... Similarly, energized atoms are only allowed to exist in one of a number of energy levels. ... By the way, Avogadro's number is 602,000,000,000,000,000,000,000 (6.02 10 23 ) molecules in 1 gr hydrogen. ...

... Сегодня: 10 апреля 2016 г. Астронавты космического корабля многоразового использования Discovery Пирс Селлерс и Майк Фоссум начали в среду свой последний в ходе нынешней экспедиции выход в открытый космос. ... Свой первый выход в открытый космос он совершил в ходе нынешнего полета Discovery к МКС в минувшую субботу. Затем оба астронавта выходили за пределы станции в понедельник, 10 июля. ... Астронавты Discovery вышли в открытый космос, чтобы потренироваться в устранении повреждений . ...

... Right: cold gas traced by [CII] emission (red) accreting onto a primeval galaxy (green) at z=7.1 ( Maiolino et al. 2015 ) (image credit: ALMA Press Release ) . ... 2010 , Cicone, Maiolino et al. ... 2012 , Cicone, Maiolino et al. ... Right: observed distribution of the average stellar metallicities of passive and star forming galaxies in the local universe, supporting starvation/strangulation as primary quenching mechanism in low/intermediate mass galaxies ( Peng, Maiolino, Cochrane 2015 ). ...