... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2009 January 6 . Jupiter Eclipsing Ganymede . Credit: NASA , ESA , and E. Karkoschka ( U. Arizona ) . Explanation: How hazy is Jupiter's upper atmosphere? ... When near Jupiter's limb, Ganymede reflects sunlight though Jupiter's upper atmosphere, allowing astronomers to search for haze by noting a slight dimming at different colors. ...

... Tonight's Sky . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Observing springtime deep-sky objects with a large telescope . ... How to observe a lunar eclipse . ... Astronomy magazine Senior Editor Michael E. Bakich explains how to watch a lunar eclipse. ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... Eclipsed Moon and Stars . ... This dramatic image features a dark red Moon during a total lunar eclipse -- celestial shadow play enjoyed by many denizens of planet Earth last Saturday. ... New Horizons Spacecraft Passes Jupiter . ... Named New Horizons, this robotic explorer passed Jupiter last week after being launched only in early 2006. ... A million miles from planet Earth, last weekend the STEREO B spacecraft found itself in the shadow of the Moon. ... Solar Eclipse from the Moon . ...

Most of these images were obtained by Mike Bessell, Michelle Buxton, Hwankyung Sung, Ralph Sutherland and Bob Watson at SSO using a 2Kx2K Site CCD behind a Nikon or Hasselblad lens or directly on the 1m telescope. A few images are from the Hubble Space Telescope. Some of the M42 images were obtained with the KPNO 1m and ESO NTT telescope. One image is a mosaic of IRAS images. ... Details of the CCD imaging program at MSSSO. ... antenna.jpg (53KB) . ... ngc6744.jpg (59KB) . ...

... 2010 . ... The following images are mosaics obtained on 03 August 2010 at the National Solar Observatory/Dunn Solar Telescope with the Interferometric Bidimensional Spectrometer (IBIS). ... The final images are approximately 238 x 242 arcseconds, or 4 x 4 arcminutes, with a pixel scale of 0.0976 arcseconds per pixel. ... The images show a broad range of typical chromospheric structures, including sunspots, superpenumbra, plage, filaments, and quiet internetwork. ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Images . ... Star Clusters . ... Usage of ESO Images and Videos . ... Usage of ESO Videos and Images . ... Stars@ESO . ... ESO Science Newsletter . ... Catch a Star 2013 . ... The pie-chart shows the starтАЩs composition: it is almost entirely made from hydrogen and helium with only a tiny trace of heavier elements. ...

small image in visible light 10k gif . ... A huge eruptive prominence leaving the sun 261k gif ; 203k jpg ; 6000k tiff . ... X-ray image of the Sun 172k gif . ... radio images of the Sun 140k gif . sun hydrogen alpha image 149k gif ; 34k jpg . Solar flare in H-alpha 147k gif ; 38k jpg . ... July 91 eclipse by Steve Albers ( caption ) 431k gif ; 143k jpg . ... Current solar images (updated daily) html ; html . eclipse images and movies ftp dir ; html from Goddard; html from Bernie Verreau . ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Pictures were performed by цЃngel R. LцЕpez-SцЎnchez & Tobias Westmeier (ATNF/CSIRO) . ...