Astronomy Picture of the Day . Up Close to Jupiter's Moon Io . ... 7.06.2000 . ... Credit: Galileo Project , JPL , NASA Explanation: Above is the highest resolution photograph yet taken of the Solar System 's strangest moon. The surface of Jupiter 's moon Io is home to violent volcanoes that are so active they turn the entire moon inside out. ... June 2000 . ... Publications with keywords: Jupiter - Moon - Io - terrain . Publications with words: Jupiter - Moon - Io - terrain . ...

... It will be visible in Ireland as an 'evening star' in the first 3 weeks of June, better seen the further South you are. ... Saturn has just entered the Southern edge of the cluster, and will pass across that edge over the next 5 days. ... On 6 June it will be only 5 degrees from the cluster and on the evening of 14 June it will have reached its W edge. ... Next evening it will be just off the E edge of the cluster. ... Next evening it will have moved about a degree closer to Saturn. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2015 July 2 . Venus and Jupiter are Close . ... Explanation: On June 30, Venus and Jupiter were close in western skies at dusk. Near the culmination of this year's gorgeous conjunction , the two bright evening planets are captured in the same telescopic field of view in this image taken after sunset from Bejing, China. ... About APOD | ...

Astronotes Armagh Planetarium's Stellar Blog! ... Meteors and Meteorites . ... Stars . ... Monthly Sky Notes . ... This famous depiction of the Leonids was based on a first hand account of a meteor storm by a minister, Joseph Harvey Waggoner. ... In the autumn the Great Square of Pegasus is visible in the southern night sky. ... I hope this guide to the November night sky is helpful and have fun star sight-seeing! ... Tweets that mention The Leonid meteors: highlights of the November night sky | ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Observing . ... Why Join? ... Jupiter joins Venus in the early evening . ... That more brilliant one is Venus, and it s currently having its best showing for northern observers of 2015 as it shines brightest and appears highest in the evening sky. ... Only the Full Moon itself climbing higher in the southeastern sky this evening appears brighter. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... STScI-PRC99-13 HUBBLE CLICKS IMAGES OF IO SWEEPING ACROSS JUPITER While hunting for volcanic plumes on Io, NASA's Hubble Space Telescope captured these images of the volatile moon sweeping across the giant face of Jupiter. Only a few weeks before these dramatic images were taken, the orbiting telescope snapped a portrait of one of Io's volcanoes spewing sulfur dioxide "snow." ... Astronomers increased the color contrast and added false colors to the image to make the faint plume visible. ...

... click image to view discuss) . ... This is a quick shot of the near-Earth asteroid 2005 YU55 using four consecutive exposures from the Harvard MicroObservatory robotic telescope in Amado, Arizona, on the night of Nov. ... 10, 2015 . This is Comet Lovejoy C/2014 Q2 as it appeared at about 10:30 pm Saturday, Jan. 10, 2015, from my back yard in Belmont, MA, about 5 miles west of downtown Boston. ... Main image: 0.6 second exposure. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... OPMINSEP is the parameter for OPTMODE=HAS that is used to prevent two scans on the same source from being scheduled too close together. SCHED determines the default spacing of scans -- evenly spaced across the available time -- regardless of whether the user overrides that default by specifying the desired hour angles. That default spacing is multiplied by OPMINSEP to get the minimum separation. ... Default: 0.0 which means don't have a minimum separation. ... Example: OPMINSEP = 0.4 . ...

... Astronomy Pictures . ... Jupiter . Jupiter from ANU's 24-inch telescope . ... Title: Jupiter from ANU's 24-inch telescope . Description: Several images of Jupiter from ANU's 24-inch telescope, Siding Spring Observatory. Lower half of picture: Close-up of Jupiter and the moon Ganymede, just before Ganymede "transits" (passes across) the face of Jupiter Upper half of picture: The image in the middle of the bottom row shows the shadow of Ganymede on the face of Jupiter about 30 minutes later. ...

... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...

... The most spectacular view however is from space, where large areas of aurora can be observed simultaneously, even the entire polar cap. ... Such pictures often show a continuous ring of aurora around the polar cap (picture above), caused mostly by electrons leaking out along magnetic field lines, from the plasma sheet of the Earth's magnetic tail. ... Field lines from the auroral oval are believed to lead to the plasma sheet. ... A near-Earth circular polar orbit has many uses. ...