Asteroid close approaches: analysis and potential impact detection Andrea Milani 1, Steven Chiesley 2, Paul Chudas 2, Giovanni B. Valsecchi 3 1 Dipartamento di Mathematica, Universita di Pisa, Pisa, Italy 2 Jet Propulsion Laboratory, California Institute of Technology, USA 3 IAS-CNR, Roma, Italy Introduction The last ten years have seen tremendous progress in our ability to assess the risk that an asteroid or comet might collide with the Earth. ... Pasadena, Jet Propulsion Laboratory. ...

The Table of HEND's GRBs . ... KONUS/ULY . ... KONUS/SAX/ULY . ... HETE/KONUS/ULY . ... KONUS/HETE/ULY . ... 2001 Nov 21 . ... Yes . ... 2002 Jan 19 . ... KONUS/HETE/RHESSI/ULY . ... KONUS/RHESSI/ULY . ... HETE/KONUS/SAX/ULY . ... KONUS/RHESSI/SAX/ULY . ... HETE/KONUS/RHESSI/ULY . ... INT/KONUS/ULY . 2002 Nov 25 . ... INT/KONUS/RHESSI/ULY . ... 2003 Jan 05 . ... INT/HETE/KONUS/RHESSI/ULY . ... HETE/INT/KONUS/RHESSI/ULY . ... HETE/INT/KONUS/ULY . ... KONUS/ULY/RHESSI/HETE . 2003 Nov 07 . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Sometimes whole galaxies can be hidden away from us, yet so close we could practically stub our toes on them. ... Now look around: you can clearly see people a few meters away, fuzzily see them 10 meters away, and only barely see them 50 meters away. ... We have detectors that can see colors of light our eyes cannot, like ultraviolet, infrared (also known as IR) and radio waves. ...

The CDK20 North is seen in November 2012 with its new A200HR mount, Apogee 16M camera, and Optec IFW-3 filter wheel. The Sirius dome of the CDK20 North is seen in May 2010, and the telescope is visible through the open shutter. ... Brad Carter (left) and Rhodes Hart (right) of the University of Southern Queensland visited their northern Shared Skies CDK20 at Moore Observatory in September 2009. ... Microswitches were added to limit the range of polar axis rotation on the original mounting. ...

... Both the primary and the secondary eclipses are seen. The eclipse ephemeris is MinI =2451441.290 +0.693326E. The local maxima of short period oscillation are seen near the light maximum. The period of oscillation may be improved with O-C method, and is equal to 0.061532 day, Max=2451432.539. The orbital period may be confirmed with the current last two year photometry of the Nova. The following is the amplitude spectrum of the Nova. ... Click here to look at the current light curve. ...

Apollo 15 . Return to Apollo 15 . ... AS15-91-12343 (26 July 1971) --- This view of Earth was photographed by the Apollo 15 crew as they sped toward the fourth lunar landing. The spacecraft was between 25,000 and 30,000 nautical miles from Earth when this photo was made. The United States (note Florida), Central America and part of Canada can be seen at the left side, with South America at lower center. Spain and the northwest part of Africa can be seen at right. ...

My name is Steve Foulkes, I have had the good luck to find SN 2000C in NGC2415. This is part of my discovery image which shows NGC2415 and the SN. ... Steve Foulkes . Image Data: . ... Object NGC 2415 recorded on 2000 Jan 8.789UT with a 0.26-m LX200 telescope on an image secured for the UK Nova/Supernova Patrol. ... The software is also used to analyse an image, and can to a limited degree, also indicate changes in the image. ... Back to Supernova 2000C in NGC 2415 . ...

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. Apogee moved from tail (~00:00 hrs LT) into solar wind (12:00 LT) and back . 2 major solar particle events (July 2000, November 2000) . many geomagnetic storms . Previous slide . Next slide . Back to first slide . View graphic version .

Next: Discussion Up: Old neutron star distribution Previous: Galactic potential . It proves to be teachful to have a look at the calculated distribution (Fig. ... The galactic z -distribution of stars and peculiar velocities slightly smear out this narrow boundary. ... The final picture (Fig. ) of the old neutron star density distribution is obviously the sum of filled equipotential lobes with different weighted with the probability shown in the Fig. ...

Born in the UK, and following degrees at the Univerities of Bristol and Sussex, Martin Elvis got his PhD under Prof. Ken Pounds at the University of Leicester (UK) in 1978 for work with the Ariel V satellite. Ariel V was only the 2nd satellite to be devoted to X-ray astronomy. ... His PhD thesis demonstrated that powerful X-ray emission was a normal feature of Active Galactic Nuclei (or "AGN"). AGN X-ray emission has been a lively area of research ever since. ...

. The great September commet of 1882. This brightest comet was seen by many people. It shole like 60 full Moons and in the daylight was seen with the Sunlight. But the core of this comet was broken into two parts after the approaching with the Sun. The parts of the comet will return in 2650. Back .

... Submitted by Al Takeda on 08/19/2007 21:04:50 . NGC 6992 (Veil Nebula – “eastern region”) . NGC 6992 (Veil Nebula – “eastern region”) – A 2.6 degree diameter supernova remnant in Cygnus. While the Veil can be seen with a 7x50 binoculars in dark skies the filamentary structure can only be seen visually with a large scope of 25 inches or larger. ... 9 August 2007. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Physica B 284}288 (2000) 649 } 650 Superconductor}insulator transition in amorphous In}O lms V.F. Gantmakher*, M.V. Golubkov, V.T. Dolgopolov, G.E. Tsydynzhapov, A.A. Shashkin Institute of Solid State Physics RAS, 142432 Chernogolovka, Russia Abstract From experiments with amorphous InO lms, three conclusions are made: (i) The pattern of the superconducV tor}insulator transition (SIT) seen before for 2D ... Fig. ... Hence, in each "eld the bosons and the fermions coexist. ...

... In Figures 2 and 3 we show the 6m telescope spectra of blue compact galaxies HS 1013+3809 and HS 1442+4250, in which typical high excitation HII-region narrow emission lines are seen. ... for red part of HS 1442+4250. ... This correction = 354 km s -1 was calculated for HS 1013+3809 and = 202 km s -1 for HS 1442+4250. ... While HS 1013+3809 looks very symmetric and very compact, with intense star formation burst taking place in its very center, HS 1442+4250 is well elongated, resembling edge-on disk...

... Yes, Exploding Comet 17P/Holmes is one of the strangest things ever seen by astronomers - professional and amateurs alike. ... We also had some club members who received some Astronomical League awards...and we'd like to congratulate them! ... It is again a potluck, and is being held at the Masonic Temple in Galion ( 1252 State Route 598, Galion , OH 44833) Here's a map: Map of 1252 State Route 598 Galion, OH 44833-9367, US And, along with the party come RAS elections for 2008! ... Comet 17P/Holmes ...

October 30-31, 1992 . ... Modified images of the October 30-31, 1992 event. (a) - This NRH image is adapted to show a very bright loop-like source over AR 7321 near the SW-limb identified with the X1.7 soft X-ray LDE event peaked on 30d at 17:30 UT (see the GOES-7 soft X-ray plot also at the upper right corner). ... Here and hereafter, the white features are radio filaments. (c) - This modified NRH image shows some large scale microwave blob chains and structures. ...

... Previous: Residual Bias Removal in HST NICMOS Images . ... Bias frames taken with CCDs should be homogeneous in intensity. ... Using a large number of bias frames obtained in one specific run, the time-dependent pattern was found to be built up of a fixed one-dimensional periodic function whose phase-shift varies from row to row. It was successfully removed from calibration and science frames through the use of pre- and upscan ``bias'' pixels available in each of these frames. ...

NEWS FEDERATION rus ENCYCLOPEDIA rus HISTORY rus MIR STATION RUSSIAN . ... Cosmonauts. ... Space Science . Heroes Of Space Remember . Military Space . ... Anatoliy Vasilyevich Filipchenko . In his first flight, Anatoliy Filipchenko found that stars are barely seen from orbit, and shouted at his flight engineer Vladislav Volkov in critical seconds before the deorbit burn. ...

... Research . ... I am currently working on a PhD in astrophysics at the University of Cambridge Cavendish Laboratory. My primary research involves active galaxies and how the relativistic jets seen in Fanaroff-Riley galaxies can affect the host galaxy's evolution. ... Aside from astrophysics, I am deeply interested in rock climbing, hiking, cycling, sailing, and traveling. Anything out in the fresh air! 2013 Tamela Maciel ...