... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

... January 8, 2007 . ... SENTINEL CORRESPONDENT . Astronomers at UC Santa Cruz have discovered a surprisingly massive halo of bright, old stars around our galactic neighbor Andromeda, pushing the outer limits of the galaxy to 1.5 million light years, and teaching them how spiral galaxies behave. ... Younger stars may be remnants of a galaxy devoured, but older stars could have formed with the birth of the galaxy. ... http://www.santacruzsentinel.com/archive/2007/January/08/local/stories/03local.htm . ...

... 8, ``Celestial Mechanics'', 2002 CCD observations of planetary satellites and occultations and close approachments of stars by asteroids with 26­ inch refractor of Pulkovo observatory T. P. Kiseleva, I. S. Izmailov, M. A. Mozhaev Pulkovo Observatory, St. Petersburg, Russia ST--6 CCD camera has been used with 26-- inch Refractor at Pulkovo for ob­ servations of ... These estimates are \Sigma0:015 arcsec and \Sigma0:014 arcsec for X and Y correspondingly. ...

Next: Endlessly Complicated World Up: No Title Previous: Tsiolkovskii's Paradox . ... Really, we have consisely expresed a materialistic, atheistic, scientific point of view and have discovered God, the scientifically supported God. ... Equally, we cannot admit an infinite complication of the world and its successful cognizability (i.e. the existence of a mind in an infinitely complicated world) without admission of Superintelligence -- the scientifically discovered God . ...

... First of all, you can obtain a map of the final coordinates of your objects and guide stars by using the command: PLOT/OPTOPUS [table] [label] [EW_flag] , . where [table] is the table output by REFRACTION/OPTOPUS . ... In order to avoid object misidentifications at a later stage, and for a cross identification between object identifiers and hole numbers, it is recommended to bring a printout of the table output created by the command REFRACTION/OPTOPUS to the telescope. ...

... Киевский клуб любителей астрономии "Астрополис" > . ... Запорожский клуб АЛЬТАИР > . SUN: Apparent Geocentric Positions, astronomical script . ... Жизнь клуба . ... 05 Май 2006, 03:02:20 ? ... SUN Apparent Geocentric Positions . ... 2006 May 05 00h00m00s 2h 47m 38.744s +16* 09' 09.47" . 2006 May 06 00h00m00s 2h 51m 30.299s +16* 26' 14.04" . 2006 May 07 00h00m00s 2h 55m 22.396s +16* 43' 02.11" . ... 2006 May 05 00h00m00s 2h 47m 38.729s +16* 09' 09.43" . ...

... Two algorithms have been used to simultaneously solve for the sky, gain, and offset for simulated sets of dithered images. ... When solving for sky and gain, achieves machine precision on noiseless data; for noisy data, solution within noise. ... When solving for sky and gain, achieves machine precision on noiseless data; for noisy data, solution slightly different from Fixsen-Arendt solution, but within noise. ... Figure 2: MIPS truth image, and full MIPS dither pattern . ...

... Contacts . 2010: . ... As a result of spectroscopy of stars with circular nebulae from the Spitzer survey (24 microns) on the BTA a new luminous blue variable star (LBV) was discovered in our Galaxy (MN112). ... Speckle interferometry of magnetic stars . We have carried out interferometric observations of a sample 160 chemically peculiar Ap/Bp stars with proven global magnetic fields. ... Radial gradient of magnetic field in the atmospheres of chemically peculiar stars . ... Archive . ...

... The first task assumes the searching for chemical composition and sizes of particles which give the wavelength dependence of the extinction efficiencies close to the observed dependence of . Figure 7: Wavelength dependence of the extinction efficiency factors for homogeneous spherical particles of different sizes consisting of astronomical silicate and amorphous carbon. The dashed segment shows the approximate wavelength dependence of the mean galactic extinction curve at optical wavelengths. ...

... The analysis shows, that asteroid ­ rubble pile loses its fast fragments in no time but the retaining fragments forms a compact structure immersed in dust ­ gas atmosphere, created by interaction of interplanetary medium with dispersed product of collisional evolution of asteroid. By interaction of an asteroid ­ rubble pile with interplanetary medium structures asteroid can increase its brightness on account of blowed up dust simulating phenomenon of distant comet's brightening. ...

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... Submitted by Al Takeda on 01/01/2015 18:28:32 . Comet Lovejoy (C/2014 Q2) in the constellation of Columba . It is the 5th comet discovered by the Australian amateur astronomer, Terry Lovejoy using an 8-inch telescope. This comet has a very long orbital period of 11,500 years. ... On January 1, 2015, Comet Lovejoy is in the constellation of Lepus and is visually a 5.6-magnitude glowing fuzz ball in moderately sized telescopes. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Asteroid 2055 YU55 passes close by Earth; how close did it get? ... As Elizabeth Flock reported: An asteroid the size of an aircraft carrier missed Earth by only 200,000 miles as it flew by Tuesday night the closest an asteroid has been to Earth in 200 years Asteroid 2005 YU55, as it has been dubbed, streaked by at about 30,000 mph, but some scientists and lucky amateur astronomers caught a glimpse in their telescopes, where they saw strange structures on the asteroid\u2019s dark-colored surface. ...

The Database of Close Binary Systems . ... Team . ... This web-based interactive database is being developed and maintained by a team at the Sternberg Astronomical Institute of the Moscow State University . The project is an on-line extension of our catalogue on "Highly Evolved Close Binary Stars" (volumes I, II) published by Gordon and Breach in 1996. As of November 2009, the database (both the software and the content) is in its development/testing phase. Sternberg Astronomical Institute ...

The Database of Close Binary Systems . ... Team . ... This web-based interactive database is being developed and maintained by a team at the Sternberg Astronomical Institute of the Moscow State University . The project is an on-line extension of our catalogue on "Highly Evolved Close Binary Stars" (volumes I, II) published by Gordon and Breach in 1996. As of September 2009, the database (both the software and the content) is in its development/testing phase. ...

MAIN PAGE . ... Nova Cygni August 1975! ... 1975/76: Comet West! ... Dr. Richard West (4th from left) & AAL members visiting SES Betzdorf on occasion of our club's 25th anniversary - October 1996 . Comet West Information . ... It was the brightest comet visible from Earth since Comet West in 1976. ... 1997: Comet Hale-Bopp! ... Thus Comet Hale-Bopp never got closer to Earth than Earth gets to the Sun. ... Comet Hale-Bopp JPL Page . ... 1999: Total solar eclipse over Luxembourg! ...

Milky Way X-ray background emission « »: , . ... RXTE , . ... Using near-infrared Galaxy intensity measured with COBE/DIRBE experiment and X-ray data from RXTE and INTEGRAL it was shown that X-ray brightness of the Galactic background emission closely follows its stellar density and can be explained by a cumulative emission of a large number of weak Galactic X-ray sources. ... Map of Galactic background emission in hard X-ray energy band obtained with INTEGRAL observatory. ... 2006, &, 452, 169 ., ...

... GALAXY: A galaxy is made up of billions or trillions of stars bound together by their own gravity. ... HELIUM (He): The second element in the periodic table, has 2 protons, 2 neutrons, and is a noble gas. ... Helium melts at -272.2 degrees Celsius, and boils at -268.934 degrees Celsius. ... HYDROGEN (H): The first element on the periodic table, is a gas, and has an atomic mass of 1.00794 amu. ... Hydrogen melts at -259.34 degrees Celsius, and freezes at -252.87 degrees Celsius. ...

SLIDE 1 Coherent beam­beam e#ects study. ... He has shown that a finite length (in other words equal to # # ) of colliding bunches can lead to the coupling of synchro­betatron modes in the beam­beam system, and thus a head­tail type instability of colliding bunches may arise. ... These modes have been observed in di#erent machines. ... SLIDE 5 Figure shows the dependence of the measured and calculated synchro­betatron mode tunes on the beam current for equal electron and positron bunch intensities. ...