... Credit Copyright: Jeff Dai Explanation: The annual Geminid meteor shower is raining down on planet Earth this week. And despite the waxing gibbous moonlight, the reliable Geminids should be enjoyable tonight (night of December 13/14) near the shower's peak. ... Watch Tonight: The Geminid Meteor Shower . ... December . ... Publications with keywords: Geminids - meteor shower - meteor . Publications with words: Geminids - meteor shower - meteor . ... Geminid Meteors over Xinglong Observatory . ...

... Meteors and Meteorites . ... By admin August 2, 2011 Posted in: August . 13 August 2009: A perseid flashes through the sky (Image credit: Andreas M†ґller via wikimedia.org) . ... Not all meteors are sporadic events, the regular meteor showers occur when the Earth bulldozes through a great swarm of meteoroids drifting in orbit round the Sun. ... They are at their best in the pre-dawn hours, as the face of the Earth turning towards the Sun catches more meteors as the Earth moves through space. ...

... 2013 December 13 . Geminid Meteor Shower over Dashanbao Wetlands . ... Explanation: The annual Geminid meteor shower is raining down on planet Earth this week. Despite the waxing gibbous moonlight, the reliable Geminids should be enjoyable tonight (night of December 13/14) near the shower's peak. ... Watch Tonight: The Geminid Meteor Shower . ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . NASA Web Privacy Policy and Important Notices . ...

The annual Geminid meteor shower makes its return to the vicinity of the Earth over the period 7th to 16th December, with the peak of activity expected to occur during the morning of 14th December. ... The Geminids appear to radiate from the constellation Gemini, The Twins, which lies high in the west in the early morning December skies. ... The near-Earth asteroid, Phaeton , discovered in 1983 using a NASA satellite, appears to be the source of the shower. ... Photographing Meteors . ...

... Articles | ... Forums . ... 230 deg . 49 deg . ... 130 deg . ... More Info . ... 210 deg . ... 168 deg . ... 249 deg . ... 195 deg . ... 271 deg . ... 110 deg . ... 338 deg . ... July 15 . 247 deg . ... 224 deg . ... 340 deg . ... July Phoenicids (PHE) . ... August 10 . 341 deg . ... 339 deg . ... 307 deg . ... 334 deg . ... 335 deg . ... 286 deg . ... 327 deg . ... 262 deg . ... 102 deg . ... 153 deg . ... 117 deg . ... December 2 . ... 123 deg . ... 100 deg . ... www.astronomy.net . ...

... It's a Meteor Shower Smaller than grains of sand, meteors vaporize in a bright streak of light as they hit Earth's atmosphere. Meteor showers come from comets, but the sporadic meteors on other nights are mostly asteroid bits. ... Meteor Showers Come From Comets Jupiter Earth Sun Comet Mercury Tips: A bright Moon can wash out meteors, making them hard to see. ... But the comet bits hit Earth's atmosphere so fast, the pieces vaporize in bright streaks -- making a meteor shower! ...

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... Tonight's Sky . ... Astronomy for Kids . ... Two meteor showers put on shows this December . ... And a second shower under moonless skies December 22/23 offers an additional treat this month. ... The Ursid meteor shower peaks under a dark sky before dawn December 23. ... One of the yearт??s most prolific meteor showers makes its appearance in mid-December. ... StarDome: Locate the constellations Gemini and Ursa Minor in your night sky before this meteor shower with our interactive star chart . ...

Thought-Provoking Imagery Shows Sun's Place in the Galaxy . ... SOHO - Explosive Coronal Mass Ejections from the Sun . SOHO-6 Comet at 2-6 solar radii from the Sun . ... The remarkable images come from SOHO's visible-light coronagraph, LASCO, which is able to mask the intense rays from the Sun's surface in order to reveal the much fainter glow of the solar atmosphere, or corona. ... SOHO is ideally placed to report and even anticipate their origins in the Sun's atmosphere. ... The Sun . ...

New England observer Lew Gramer, fresh back from his mid-November fish observing and meteor-catching expedition in South Florida, reports that December also promises to be a great month for celestial sky-sparks!" ... Other showers adding to the mix this month include several very minor showers, such as the Chi Orionids (3 Dec), Monocerotids (9 Dec) and Sigma Hydrids (12 Dec), which usually contribute no more than 2 or 3 meteors per hour during even post-midnight observing this month. ...

Next: An overview Up: The discovery of pulsars Previous: Identification with rotating neutron . unsuccessful optical search for PSR 1919+21 . optical pulsations from the Crab pulsar [ 9 ] . optical data before radio discovery not analysed [ 36 ] . ... X-ray data before radio discovery not analysed [ 10 ] . Figure 3: The Crab pulsar. This pair of photographs was taken using a stroboscopic technique, showing the pulsar on (left) and off (right). ...

... We Fourier analysed Hubble Telescope Crab pulsar data obtained with the High Speed Photometer in October 1993. A weak modulation at frequency Hz is detected. We found a strong correlation between this result and the Fourier transform result of stroboscopic Crab pulsar data obtained in December 1994 at the 1.82m telescope of Asiago observatory (University of Padua, Italy). ... We found that both data show a weak modulation at the period of 60 seconds. ... The corresponding frequency is Hz . ...

... 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. ...

Mike Carr and Jon Brinkmann have steadily been working on the construction of the spectrograph chiller. From the early part of the week Jon Brinkmann works on the bench with the fans. The body of the chiller is in the background. Mike and Jon work on installing the parts into the body of the chiller. Can you tell Mike is excited with the chiller's progress!! The fan assembly shown inside the body. ... Pictures taken by Gretchen Van Doren/Apache Point Observatory. ...

... Journal: 1973, Astron Zh., ... The isotopic shifts of helium spectral lines have been measured for four high velocity OB-stars and one standard star. The spectrograms were secured at 2.6 m reflector of the Grimean observatory, dispersion beging 8 / mm . All five stars did not show the systematic isotopic shifts. But three lines of 53 Ari have shown shifts which are in agreement with theoretical ones, but other helium lines did not show such shifts. ...

. Terrain Movie

... A good way to keep track of these concepts is the space-time diagram . ... The usual convention is that time runs up the diagram, so the bottom is the past, or early times, and the top is the future, or late times. ... The space-time diagram above shows particles with different velocities. ... The fancy light picture on the left shows both the past and future light cones of the event where the two worldlines cross, while the schematic version on the right is easy to use in more complicated diagrams....

... Dmitry Stepanovich (VIDEO of March 2011) . Olga Silchenko, a soloist of the Early Music Theatre . ... Anna and Olga Silchenko have presented the duets by Rubinstein and Chaikovsky (VIDEO) . ... Two Russian romances - duets by Olga Silchenko and Dmitry Stepanovich (VIDEO) . ... N. Rimsky-Korsakov "The Tsar's Bride", the duet of Lubasha and Gryaznoy - by Olga Silchenko and Dmitry Stepanovich (VIDEO) . ... Vivaldi "Magnificat", 6th part, duet by Anna and Olga Silchenko (VIDEO) . ... Olga Silchenko . ...

Project a2010 (alfalfa) saw some interference near 1346.7 MHz while taking data during aug08. ... To characterize the rfi, the peak value +/- 1MHz about 1346.7 was taken as the location of the rfi in time.. ... beam 2 peak . ... The red line is near the peak for the 1346.7 rfi for beam 2. ... Pages 2-3 (polA,polB): For each day the peak power near 1346.7 is plotted versus AST seconds from midnight (note that 26aug08 is missing since no rfi was seen). 273 seconds/day is added to each day after 22aug08. ...

... After going through several logical arguments for the Earth's sphericity (which have not held up over time), Aristotle wrote: . ... Again, our observations of the stars make it evident, not only that the earth is circular, but that it is a circle of no great size. ... There is much change, I mean, in the stars which are overhead, and the stars seen are different, as one moves northward or southward. ... Back to the main file (8) The Round Earth and Christopher Columbus . ...