... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

Made using Google Earth images available in January 2008 . Above: The GMRT antennas of the central array as viewed from above. (click on the image for a larger version) . Above: The GMRT antennas of the central array and . the GMRT observatory buildings as viewed from above. (click on the image for a larger version) . ... Above: The GMRT antennas of the outer array from space. The position of antennas are marked by symbols. GMRT images Google Earth old . ...

Turning the Camera Skyward . A reconfigured camera can take wide-field exposures of astronomical objects (constellations, the Milky Way, zodiacal light, moving artificial satellites, meteor showers, variable stars, etc.) to reveal much fainter objects and structures than seen by naked eye. ... This picture reveals objects more than 2.5 times fainter than can be seen by the naked eye, including not only stars but also the Orion nebula (M42), where new stars are being born. ...

... See also changes and comments in configure.in # prefix = @prefix@ exec_prefix = @exec_prefix@ DESTDIR = CFITSIO_LIB = ${DESTDIR}@libdir@ CFITSIO_INCLUDE = ${DESTDIR}@includedir@ INSTALL_DIRS = @INSTALL_ROOT@ ${CFITSIO_INCLUDE} ${ CFITSIO_LIB } ${ CFITSIO_LIB }/pkgconfig SHELL = / bin /sh RANLIB = @RANLIB@ CC = @CC@ CFLAGS = @ CFLAGS @ SSE_FLAGS = @SSE_FLAGS@ FC = @FC@ LDFLAGS = $( CFLAGS ) DEFS = @ DEFS @ LIBS = @ ...

XMM-Newton Science Analysis System . ... Input AHF file . Data set defining the position of the moving object as a function of time with the following minimal column structure: . column name . ... apparent geocentric Right Ascension . real32 . deg . ... apparent geocentric Declination . ... XMM-Newton SOC/SSC -- 2008-07-01 ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... For example, modified Newtonian dynamics (MOND) has no relativistic extension, and so makes no firm lensing predictions, but galaxy-galaxy lensing data can be used to empirically constrain the deflection law of a MONDian point-mass. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... gradients dependencies on solar wind parameters and IMF; . ... fate of thermal plasma at the dayside magnetopause. velocity-dispersed injections of the thermal and superthermal ions from LLBL at cusp and cleft (lowest energy VDIS-2 events); . ... outer cusp processes, role of outer cusp indentation, plasma entry (laminar reconnection, turbulent diffusion, others), role of turbulent boundary layer; . how is the magnetosheath plasma heated near magnetopause and cusp? . ... cusp/cleft wave emissions. ...

DAILY REPORT #1768 PERIOD COVERED: 0000Z (UTC) 11/26/96 - 0000Z (UTC) 11/27/96 Daily Status Report as of 332/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed FOS/BL 6637 (Determining the Morphology of the Intense = Magnetic field in the Hot DA White Dwarf Stars) The Faint Object Spectrograph (Blue Side) was used to make = time-resolved spectrographic observations of the DA class, hot, white = dwarf ... The observations were executed as = scheduled, and no anomalies were noted. ...

... To derive the motion of a penny dropped inside an airliner moving at 600 miles/hr (about 1000 km/hr)--should we calculate it with respect to the interior of the airliner, or with respect to the ground? ... And if a similar penny is let go inside an orbiting spaceship--should its motion be calculated relative to the interior of the spaceship, or relative to the Earth outside? ... Each such choice is known as a frame of reference . Some possible frames are -- the interior of the airliner, . ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...