Nowadays at the Department the experimental and theoretical investigations, including astronomical and ionospheric observations, active experiments with space vehicles are taking place. ... Solar Corona physics and erruptive phenomenae. ... Stellar astronomy. ... The Department has organized and put into practice more then 50 expeditions for observation of Solar ecllipces, aurorae polaris, comets, meteor streams, controlled space experiments, and also for investigations of geophysical characteristics. ...

ПЕРЕЛ?К ПУБЛ?КАЦ?Й СП?ВРОБ?ТНИК?В ГАО . ... Jockers K. Rosenbush V.K. Kiselev N.N. Comparative study of the dust polarimetric properties in split and normal comets. ... Jockers K. Rosenbush V.K. Kiselev N.N. Polarimetric properties of the dust in disintegrating comets. ... Avramchuk V.V. Rosenbush V.K. Kiselev N.N. Comparative study of brightness and polarization opposition effects for different atmosphereless solar- system bodies. ...

. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

This is a copy of a Press Release from E.S.O. Eight years after the passage of Comet Halley in early 1986, astronomers at the European Southern Observatory have succeeded in obtaining an image of this famous object at a distance of no less than 2,820 million km from the Sun. ... The image shows the 6 x 15 km avocado-shaped nucleus as an extremely faint point of light without any surrounding dust cloud. ... This observation was made with the ESO 3.58 metre New Technology Telescope (NTT). ...

... In January 2015 using the Mini-MegaTORTORA multichannel optical sky-monitoring system with subsecond temporal resolution, the observations of comet C/2014 Q2 (Lovejoy) and asteroid 357439 2004 BL86 were carried out. ... It was put into operation in 2014. ... Comet C/2014 Q2 (Lovejoy). The 60-min-long observations with the Mini-MegaTORTORA system on Jan 19, 2015 at 16:50 UT, exposure time 30 s, BVR synchronously . ... Asteroid 357439 2004 BL86. ...

A team of U.S. and German astrophysicists have made the first ever detection of X-rays coming from a comet. ... Following the initial detection, the team reported repeated X-ray emissions from the comet over the next 24 hours. ... One preliminary theory is that X-ray emission from the Sun was absorbed by a cloud of gaseous water molecules surrounding the nucleus of the comet, and then were re-emitted by the molecules in a process physicists call "fluorescence." ... Comets . ...

Astronomy Picture of the Day . ... Roll Cloud Over Wisconsin . ... These rare long clouds may form near advancing cold fronts. ... This cosmic snapshot composed with image data from NASA's Wide-field Infrared Survey Explorer (WISE) satellite captures a multitude of faint stars and distant galaxies toward the constellation Lyra at wavelengths longer than visible light. ... A Jet from Galaxy M87 . ... What's causing a huge jet to emanate from the center of galaxy M87? ... Hurricane Irene Forms . ...

... Copyrightї1997 Bob Yen (byen@ix.netcom.com) (http://www.comet-track.com/hb/hb.html) . ... Information on Comet Hale-Bopp for the Non-Astronomer Hale-Bopp rotates about twice a day (3/14/97) . ... The Comet Observation Home Page was been selected to receive the Griffith Observatory Star Award for the week of February 2 - 8, 1997 for excellence in promoting astronomy to the public through the World Wide Web. ... Typically, about 1,000 individual users/computers access this page every day. ...

... Comet 292P/Li. Images obtained using the Faulkes Telescope South, operated by Las Cumbres Observatory. ... Comet C/2013 A1 Siding Spring. ... Throughout our week at Armagh Observatory, we used the Faulkes Telescope in Australia to look at an interesting comet from the Oort Cloud C/2013 A1 (Siding Spring), that was discovered on the 3rd of January in 2013, by Robert H. McNaught at Siding Spring Observatory. ... Image obtained using the Faulkes Telescope South, operated by Las Cumbres Observatory. ...

... 8, ``Celestial Mechanics'', 2002 Dynamics of the Saturnian system with regard to high precision observations A. Vienne 1;2 , W. Thuillot 1 , J. E. Arlot 1 1 IMCCE/Observatoire de Paris 2 Universit'e de Lille, France The acquisition of high precision astrometric observations of Solar System ob­ jects can be applied to the improvement of the dynamical models and to explore some specific problems of celestial mechanics. ... Vienne A., Duriez L. TASS1.6: Ephemerides of the major Saturnian satel­ lites. ...

... Old World First Asteroid Radar Echo. ... It testifies that 4179 Toutatis is a double object like asteroid 4769 Castalia. ... Interference of Radar Echo from the Binary Asteroid 4179 Toutatis. ... An analysis of the 6-cm radar data revealed quasi-harmonic oscillation of the echo’s “central” Doppler frequency with a period of about 14 sec and a deviation of about (0.7*B) Hz, where B is the echo bandwidth, which for 4179 Toutatis was equal to 2.1 Hz and 1.9 Hz for 1992 Dec 8 and 9, respectively. ...

... Correcting ETC Calculations of CCD Spectral Observations for CTE Effects . ... HST Overview . Overview . ... Post-Observation . ... ETC . ... ID: CL Script for Applying CTE Loss to Output of Spectroscopic ETC . ... However, the STIS ETC calculations do not incorporate these CTE effects as yet. ... The output from this script should then be used to calculate the appropriate input flux level for a second run of the ETC, which will then yield output which is corrected for the CTE effect. ...

Hubble Observations Shed New Light on Jupiter Collision . Was it a comet or an asteroid? ... Their initial findings, combined with results from other space-borne and ground-based telescopes, shed new light on Jupiter's atmospheric winds, its immense magnetic field, the mysterious dark debris from the impacts, and the composition of the doomed comet itself. ... Hubble's ultraviolet observations show the motion of very fine impact debris particles now suspended high in Jupiter's atmosphere. ...

... A2616 Date Received: 2011-Feb-06 12:35:14 Technical Page Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Astronomy Spectroscopy Solar System 60 Hours 2 OH Observations of four comets June 2011 - January 2012 We propose to continue our measurements of OH lines in cometary comae to measure the water production rates, outflow velocity and study effects of collisional quenching in the inner coma. ...

Pulkovo Database of Observations of Minor Planets and Comets . Select an object and the time interval . Minor planets with long-term observations - - - - - - select an object - - - - - - 1 Ceres 2 Pallas 3 Juno 4 Vesta 6 Hebe 7 Iris 11 Parthenope 18 Melpomene 25 Phocaea 39 Laetitia 40 Harmonia 389 Industria 532 Herculina 704 Interamnia 762 Pulkova . ... Select database . ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... Women in Astronomy . ... Science Fiction with Good Astronomy . ... Dramatic, complex history and future of the battle between dark matter and regular matter life-forms in the universe. ... 1996, Ace)  Complex hard-science novel by a Canadian amateur astronomer with intriguing ideas about dark matter and even dark matter life forms. back to topic list . ... The Milky Way becomes an active galaxy, but life on Earth is saved by a higher intelligence...

... Stellar Evolution is driven entirely by the never ending battle between Pressure and Gravity . As imbalances are reached, the star is driven to find a new Energy source. ... Pressure and gravitational forces are equal, the star is stable and its core is sufficiently hot to fuse Hydrogen into Helium More about main sequence stars . ... The luminosity generated by the core fusion of Helium into Carbon is far greater than the shell luminosity associated with the fusion of Hydrogen into Helium. ...

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... Comet 2003/K4 . Forum List | ... Post Message | ... Comet 2003/K4, is pretty nice. ... Login to Post . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Comets and Asteroids . ... Space Flight . ... By admin October 14, 2010 Posted in: Comets and Asteroids . ... No one on Earth noticed this cataclysm until January 2010, almost a year later, when the LINEAR survey discovered something odd , initially thought to be a comet. ... For details of observations at this time, see Crash of the Asteroids by Sinead McNicholl in the March 2010 issue of Astronotes . Colliding asteroid P/2010 A2 as seen by Rosetta (Image credit: ESA) . ...

... 2007 January 17 . Comet McNaught from New STEREO Satellite . Credit: SECCHI , STEREO , NRL , NASA . ... The Sun Earth Connection Coronal and Heliospheric Investigation (SECCHI) instrument onboard the Solar TErrestrial RElations Observatory (STEREO) satellite had just opened up on January 11 when it snapped the above image of Comet McNaught . ... Comet McNaught has rounded the Sun and will slowly fade away for observers in Earth's Southern Hemisphere as it recedes from the Sun. ... About APOD | ...