Astronomy Picture of the Day . Comet Hale-Bopp Develops a Tail . ... 12.02.1997 . ... U. Ljubljana ) Explanation: Comet Hale-Bopp has quite a tail to tell already. This remarkable comet was first discovered in 1995, even before Comet Hyakutake . ... In the above picture, the blue stream is the ion tail which consists of ions pushed away from the comet's head by the solar wind . ... Publications with keywords: tail - Comet Hale-Bopp . Publications with words: tail - Comet Hale-Bopp . ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. February 12, 1997 . Comet Hale-Bopp Develops a Tail . ... Explanation : Comet Hale-Bopp has quite a tail to tell already. ... In the above picture, the blue stream is the ion tail which consists of ions pushed away from the comet's head by the solar wind . ... Comet Hale-Bopp is now visible in the morning sky , moving a few degrees each day. ...

... Its perihelion would occur on April 1, 1997, at which point the comet would be only 0.92 astronomical units from the Sun, just within the orbit of Earth. ... Taken in April 1993, the photo showed the comet over 13 astronomical units from the Sun, well beyond the orbit of Saturn. ... Hale, as in Comet Hale-Bopp, has written a book, Everybody's Comet (available through the ASP Catalog) and coordinated an Internet project, "Hale-Bopp: Live in the American Classroom." ... Anatomy of a comet. ...

... Orbit | ... Comet Hale-Bopp, designated C/1995 O1 (Hale-Bopp), is named after Alan Hale and Thomas Bopp, two amateur astronomers of Cloudcroft, New Mexico, and Glendale, Arizona, who independently discovered it on the night of 22 July 1995 whilst observing the globular cluster M70, in Sagittarius, which happened to be close on the sky. ... The initial orbit even indicated that Hale-Bopp might pass close to the Earth in 1997. ... Path of Comet Hale-Bopp (from March 1996 to May 1997). ... 1997 . ...

... Armagh Planetarium . ... Universe . ... Posted on April 2, 2014 | ... Continue Reading.. ... No Comments Astronomy is a science that knows no borders. ... 1 Comment Comets are frozen lumps of ice (often called volatiles) and rock that come from distant parts of our Solar System. ... Newer Entries . Hello, IтАЩm Colin, welcoming you to Astronotes, the PlanetariumтАЩs official blog. Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

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... June 28, 1998 . Comet Hale-Bopp Over Val Parola Pass . ... Explanation: In 1997, Comet Hale-Bopp became much brighter than any surrounding stars. ... Here Comet Hale-Bopp was photographed last March above Val Parola Pass in the Dolomite mountains surrounding Cortina d'Ampezzo , Italy. Comet Hale-Bopp 's blue ion tail was created when fast moving particles from the solar wind strike ions expelled from the comet's nucleus. ... About APOD > . ...

... Telescopes . ... The International Conference "Dark Ages and White Nights (Spectroscopy of the CMB)" (June 20-24, 2016) . ... The International Conference "Stars: from collapse to collapse" (October 3-7, 2016) . The traditional annual competition conference of scientific and scientific-engineering papers of the Observatory staff members . ... A session of the Dissertation Council (October 16, 2015) . ... International scientific conference "Large Optical Telescopes" (October, 10-13, 2011) . ...

... Dept. for Astrometry & Space Geodynamics . ... Conferences . ... Borysenko S.A. A program to discover comets. ... 6th Open Young Scientists' Conference on Astronomy and Space Physics, April 27-30, 1999, Kyiv Borysenko S.A. First results of dynamical spectroscopy of comet Halley. ... 8th Open Young Scientists Conference on Astronomy and Space Physics, April, 2001, Kyiv Borysenko S.A. Solar activity in November-December 1985 and its effect on the fast variations in the spectral lines of comet Halley ....

. 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.

... ESO PR Photo 07a/01 . ... ESO PR Photo 07b/01 . ... Caption : PR Photo 07a/01 shows Comet Hale-Bopp , still active at a distance of nearly 2,000 million kilometres from the Sun. ... This is quite unusual for a comet and is clearly confirmed on the present photo ( PR Photo 07a/01 ) from the WFI camera on the MPG/ESO 2.2-m telescope at La Silla, obtained a few days ago. ... ESO-Chile . ... ESO PR Photos 07a-b/01 may be reproduced, if credit is given to the European Southern Observatory (ESO). ...

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... Comet Animation . ... Comet structures are diverse and very dynamic, but they all develop a surrounding cloud of diffuse material, called a coma, that usually grows in size and brightness as the comet approaches the Sun. ... As comets approach the Sun they develop enormous tails of luminous material that extend for millions of kilometers from the head, away from the Sun. ... The evaporated molecules boil off and carry small solid particles with them, forming the comet's coma of gas and dust. ...

... Laboratory for Spectroscopy of Molecular Structures . ... News . ... A new article entitled Description of optical properties of cholesteric photonic liquid crystals based on Maxwell equations and Kramers-Kronig relations has appeared in Physical Review E. Congratulations to Grigoriy Ksyonz on his first publication! . 25 th February 2013 . ... 22 nd November 2012 . ... 22 nd February 2012 . 4 th Workshop on Liquid Crystals for Photonics 2012 will take place in Hong Kong December 9-11, 2012. ...

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STScI . STScI Hosts "Habitable Worlds Across Time and Space" Symposium April 28-May 1 . ... What is STScI . ... Spring Symposium Poster . ... During the four-day symposium "Habitable Worlds Across Time and Space," scientists from diverse fields will gather at the Space Telescope Science Institute in Baltimore, Maryland, on April 28 through May 1, to discuss the formation and long-term evolution of terrestrial bodies throughout the various phases of stellar and Galactic evolution. ...

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Independent University of Moscow . Institute for Problems in Mechanics (RAS) . Algorithmic problems in low-dimensional topology, knot theory, analysis on manifolds with singularities. February 11, 2003 "Undecidable problems in low-dimensional topology" (M.M. Postnikov seminar) Moscow. March 28, 2003 "Viro-Turaev invariants folloroing Matveev" (Natanzon-Sheinman-Schwartzman seminar), Moscow. ... Moscow, 1997 (in Russian, jointly with V.Prasolov), 352 pages. ...