Meteors are more than just pretty lights in the sky. Since the majority of meteor-producing meteoroids originate from comets, they contain invaluable information about these objects not otherwise obtainable. ... One such possibility is the planet Mars. ... Taking into account the slower average speed of incoming material at the heliocentric distance of Mars from the Sun, a meteoroid of the same mass entering the martian atmosphere at 30km/sec would produce a meteor +0.5 mag fainter than at Earth. ...

Instrument Science Report WFC3 2005-001 Results of WFC3 Thermal Vacuum Testing - UVIS Channel Ghosts T.M. Brown February 2, 2005 ABSTRACT The optical ghosts in the WFC3 UVIS channel, measured during the Fall 2004 thermalvacuum test, show the same morphologies and strengths as characterized previously while under ambient conditions. ... Introduction The WFC3 UVIS channel shows significant optical ghosts in a subset of its filters. ...

... Martian Crater Shows Evidence of Dried Pond . ... Credit: Mars Global Surveyor Project , MSSS , JPL , NASA Explanation: Did a pond once exist in this Martian crater? ... Previously, much evidence suggested the effects of ancient channels of flowing water on Mars, but less evidence had been found for dried pools of water . ... Publications with keywords: Mars - water - crater . Publications with words: Mars - water - crater . ... Victoria Crater on Mars . ... Inside Victoria Crater on Mars . ...

... June 3, 1998 . Martian Crater Shows Evidence of Dried Pond . ... Explanation: Did a pond once exist in this Martian crater? Recent photographs by the spacecraft Mars Global Surveyor , currently in orbit around Mars , show features unusual for Mars yet similar to a dried pond on Earth . Previously, much evidence suggested the effects of ancient channels of flowing water on Mars, but less evidence had been found for dried pools of water . ... About APOD > . ...

... The first column shows the kinematical diagrams, where is the angle between the line of sight on the object and the vector of rotation about Z -axis, and V S is objects line-of-sight velocity relative to an observer at rest at the position of the Sun. The straight lines are regression fits, whose slopes yield the subsystem’s rotation rate. The second column shows the relations between metallicity and distance from the Galactic plane. ... privious figure | next figure . ...

... the images show the dynamic spectra for files wapp.20100927.a2010.0031,32,33.fits . dynamic spectra file .0031 start 22:36:38 ast (.gif) . dynamic spectra file .0032 start 22:46:44 ast (.gif) . dynamic spectra file .0033 start 22:56:51 ast (.gif) . ... Gps l3 was on for about 26 minutes. ... svn15 was about 10.8 degrees from the pointing direction when the rfi started and 10.5 degrees away when it stopped. svn25 (the new satellite) was close to the horizon when the rfi was on. ...

... Just one: a very stringent requirement on the relative positions of Earth and Mars at the time of launch. ... Suppose the spacecraft which has landed on Mars is a robot , which collects a sample and immediately takes off again for its return trip. ... Since Earth and Mars constantly change their relative position, it stands to reason that if we sufficiently delay the return trip, Earth will move from position (2) relative to Mars to position (3), at which time the return trip can begin. ...

Classroom Activity: A Viewgraph Comet . ... This will simulate the Earth's orbit around the Sun. ... Draw several comets along the path with their tails pointing away from the Sun. ... You can create other viewgraphs that have a smaller scale and show several comet orbits or constellations. ... Show how the Earth's orbit is almost circular compared to the comet's. Explain that the Sun is at the focus of the orbits of the planets, asteroids, and comets. ... Actually, comets have two tails. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... The Real Reality Show: Would aliens be anything like us? Observing springtime deep-sky objects with a large telescope . ... Appreciating a celestial light show . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Astronomy Discussion Forums . Forums: . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... Discussion Forums . ... A Link To A Book Showing "ruins" On Mars . Forum List | ... Post Message | ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Ruler widgets are used to indicate the location of the mouse pointer in a given window. ... Placement of the drawing area and the rulers is done using a table . #include gtk/gtk.h #define EVENT_METHOD(i, x) GTK_WIDGET_GET_CLASS(i)- x #define XSIZE 600 #define YSIZE 400 /* This ... *event, gpointer data ) { gtk_main_quit (); return FALSE; } /* The main routine */ int main( int argc, char *argv[] ) { GtkWidget * window , * table , * area , * hrule , * vrule ; /* Initialize GTK and create the...

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel and Contacts . Travel to ESO Headquarters . ... Survey Telescopes . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... Planetarium shows . ... This diagram shows the constellation of Taurus (The Bull). The position of the star-forming regions Barnard 211 and Barnard 213 is shown in red. ... Barnard 211 , Barnard 213 , Constellation Chart , Taurus Constellation . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Space Flight . ... Posted on September 12, 2011 | No Comments September features yet another delightful selection of astronomical treats. ... Continue Reading.. ... Part of [ ] . ... Posted on August 11, 2011 | ... Posted on July 19, 2011 | 4 Comments We have been celebrating the first Neptunian year since the discovery of the eighth (and as far as we know last) planet in the Solar System. ... Posted on June 20, 2011 | ...

... To run the <LAYER> version of the example, select: flower.htm . ... However, if the page had several layers with absolute positions, and you wanted to place another layer in a relative position to one of the existing layers, you could use inline JavaScript to calculate the value for LEFT or TOP . ... In this example, there is really no need to use inline JavaScript to position the last flower layer, since you could just let the TOP value default to its natural value, as in the other flower layers. ...

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

Stellarium 0.12.3 . ... Classes . ... ScreenImage Class Reference . ScreenImage (const QString &filename, float x, float y, bool show=false, float scale=1., float alpha=1., float fadeDuration=1.) Load an image. ... virtual voidљ . ... setFadeDuration (float duration) . ... the time it takes for screen images to fade in/out/change alpha in seconds. virtual void ScreenImage::addXY . ... Set the duration used for the fade in / fade out of the image. virtual void ScreenImage::setFlagShow . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Mad Science . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Sun coming thru clouds forms beams of light (in dust in air?) ... Why does it look like that when the rays are supposed to be parallel and the sun 93M miles away? ... The rays really do appear to diverge: they are close together near the Sun, then spread out overhead. ... The rays as a set are parallel, but each ray is a little bit fan-shaped. ... 2008 Phil Plait. ...

... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...

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