Neptune . ... Triton . Neptune 291k gif . Full Disk Neptune 93k gif ; 29k jpg . ... New Dark spot 25k jpg ; 113k gif ; caption ; press release . ... Another thin Crescent of Neptune 166k gif . ... low resolution shot of Neptune, possibly showing great black spot 210k gif . ... Parting view of Neptune and moon Triton 59k gif ; 17k gif ; 23k jpg . ... Small Dark Spot 190k gif ; 133k jpg . Small Dark Spot 55k gif ; 23k jpg . ... The Great Dark Spot 423k gif ; 153k gif ; 97k jpg . ...

... The awsome spectacle of a brilliant comet, with its long ghostly tail streaming behind it, is a rare event. ... Only one other comet, Comet Halley, was seen so far from the Sun, giving scientists an opportunity to watch it as it slowly warmed up and sprouted a tail. ... Comets are the Rip Van Winkles of the solar system -- mini-worlds that have changed little during their 4.5-billion-year nap far from the Sun. ... Observing Comets . ... Once, comets inhabited the entire solar system. ...

... The remote planet Pluto and its moon Charon orbit the Sun at a mean distance of almost 6,000 million kilometres, or nearly fourty times farther out than the Earth. During a recent investigation by an international group of astronomers [1], the best picture ever of Pluto and Charon [2] was secured with the European Space Agency's Faint Object Camera at the Hubble Space Telescope (HST). ... The new HST image was taken when Charon was near its maximum elongation from Pluto (0.9 arcseconds). ...

... 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. ...

Astronomy Picture of the Day . ... Planets Over Easter Island . ... It isn't every day that planets line up behind a stone giant. For one thing, it helps to have a good planet line-up, such as occurred in the sky just last month. ... High above planet Earth, a human helps an ailing machine. ... Phases of Venus . ... Brain Crater on Mars . ... Comet NEAT (Q4) Over Indian Cove . ... NGC 3372: The Great Nebula in Carina . ... This picture by the Galileo spacecraft shows just how cloudy Venus is. ...

... 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., ...

... Supernova showered Earth with radioactive debris . ... The Real Reality Show: Would aliens be anything like us? ... Do other planets have meteor showers like Earth has? ... If so, can we learn anything about the planet's atmosphere by looking at the light as meteors burn? ... RELATED TOPICS: METEOR SHOWER . All planets in our solar system that have atmospheres also have meteor showers. ... Get instant access to subscriber content on Astronomy.com! ...

... Meteor showers on Mars . The Leonid meteor shower . The Taurid complex . Observatory meteor cameras . and planet-crossing bodies in general: comets, asteroids, and the solar system meteoroid/dust complex) . ... The Oort cloud, a roughly spherical cloud of comets extending a significant fraction of the way to the nearest star . ... JPL solar system dynamics . International Meteor Organization . Last Revised: 2007 March 15th . ...

delay-doppler image of the Maxwell Montes region of Venus, taken using the S-Band (2380 MHz or 12.6 cm) radar transmitter and the 305m dish at the Arecibo Observatory in Arecibo, Puerto Rico in June of 1988. The horizontal resolution is about 2 km. ... This delay-doppler radar image shows craters near the North pole of Mercury. The resolution of this image is about 15 km. ...

... Neptune is smaller in diameter but larger in mass than Uranus . ... N eptune has been visited by only one spacecraft, Voyager 2 on Aug 25 1989. ... A t the time of the Voyager encounter, Neptune's most prominent feature was the Great Dark Spot (left) in the southern hemisphere. ... Neptune's winds blew the Great Dark Spot westward at 300 meters/second (700 mph). ... L ike Uranus and Jupiter, Neptune's rings are very dark but their composition is unknown. ... Neptune's Ring System . ... Uranus .. ...

Voyager 2 image of Neptune showing the Great Dark Spot and associated bright clouds and a bright Scooter to the lower left. ... Central Latitude/Longitude (deg): N/A . ... Instrument: Narrow Angle Vidicon Camera . ... Instrument Field of View (deg): .424 x .424 . ... Illumination Incidence Angle (deg): N/A . Phase Angle (deg): N/A . ... Surface Emission Angle (deg): N/A . ... NASA Image ID number: P-34632 . ... Code 633, NASA Goddard Space Flight Center . Greenbelt, MD 20771, USA . ...

.

... The Wide Field Planetary Camera 2 (WFPC2) Investigation Definition Team (IDT) has used the instrument on HST to observe circumstellar material around eleven young stellar objects, three main sequence stars with debris disks, and three shell stars. ... DG Tau shows a number of arcs of reflection nebulosity and significant jet structure. DG Tau B has a thick absorbing disk with a bipolar jet. ... FS Tau is surrounded by intricate nebulosity with a possible bipolar outflow cavity. ...

... This 10 min exposure shows star trails clearlтАж . Sidebar Left . ... Title: This 10 min exposure shows star trails clearly defining the south celestial pole just left of centre. Description: The Large and Small Magellanic Clouds are on the left and the Milky Way from Crux through Centaurus are on the right. ... This 10 min exposure shows star trails clearly defining the south celestial pole just left of centre. ...

... 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. ...

... Cloud" CALDWELL 14 MESSIER 34 MESSIER 45 CALDWELL 41 DEEPSKY "Large Mag. Cloud MESSIER 79 MESSIER 38 MESSIER 42 MESSIER 36 MESSIER 37 MESSIER 35 SAO 234480 MESSIER 41 MESSIER 44 CALDWELL 53 CALDWELL 92 NGC 3377 CALDWELL 91 NGC 4261 MESSIER 68 CONSTELLATION Coma Berenices CALDWELL 99 CALDWELL 94 CALDWELL 77 CALDWELL 80 MESSIER 51 MESSIER 04 MESSIER 13 MESSIER 92 MESSIER 06 MESSIER 07 MESSIER 08 ... This is" "short for 'Quasi stellar objects.' ...

... 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 . ...

Photograph quality The photographs must be: I no more than 6-months old 35­40mm in width close up of your head and top of your shoulders so that your face takes up 70­80% of the photograph in sharp focus and clear of high quality with no ink marks or creases too close too far away I I I I blurred ink marked/creased I The photographs must: show you looking directly at the camera ...

... 3-D reconstruction of Jupiter's Radio Emission . High energy electrons trapped in Jupiter's radiation belts emit synchrotron radiation at radio wavelengths. Here we show the movie of a 3-D reconstruction of ATCA 20-cm Jupiter's synchrotron radiation. ... The ATCA data were taken by Dulk, Leblanc and Sault (1997) ; the 3-D reconstruction software was developed at the ATNF by Sault, Oosterloo, Dulk Leblanc (1997) . ... today * ATNF | ... ATCA | ...

... We have examined the diversity of planets and planetary systems that arise from oligarchic growth and gas accretion onto massive cores, by means of N-body simulations combined with a sophisticated disc model. ... Slow planetary growth resulted from the relatively low mass of solids in the disc, and one consequence of this is that planets underwent limited orbital migration during the lifetime of the gas disc. ... Figure 1 shows an example of this migration behaviour in a single-planetin-a-disc run. ...