... Comet McNaught Over New Zealand . ... This looks like a near miss but the greenish coma and tail of Comet Siding Spring (C/2013 A1) are really 2,000 light-years or so away from the stars of open cluster Messier 6. ... The Helix Nebula from Blanco and Hubble . ... Eclipse at Moonrise . ... From the early hours of October 8, over the Santa Cruz Mountains near Los Gatos, California, the totally eclipsed Moon shows a range of color across this well-exposed telescopic view of the lunar eclipse. ...

... The solar regions . ... NOAA 11300's . ... The description of the solar regions . ... The long bipolar chain of small sunspots were observed at the 29th parallel of the Southern hemisphere since 6.04 to 14.04.02. ... The bipolar combination of sunspots crossed the Sun disc since 7.04 to 19.04.02 along the mid latitudes of the Northern hemisphere. ... The short-time bipolar sunspots were marked at the low latitudes of the Northern hemisphere since 12.04 to 15.04.02, in the Western part of the Sun...

... 2007 February 12 . Comet McNaught Over New Zealand . ... Explanation: Comet McNaught is perhaps the most photogenic comet of our time. ... Comet McNaught was imaged two weeks ago between Mount Remarkable and Cecil Peak in this spectacular image taken from Queenstown , South Island , New Zealand . The bright comet dominates the right part of the above image , while the central band of our Milky Way Galaxy dominates the left. ... About APOD | ... NASA Web Privacy Policy and Important Notices . ...

... ESO for the Public > Doing Business with ESO > Technology Transfer > Historic examples of ESO-developed technologies . ... Solar System . ... Survey Telescopes . ... Technical CCD systems . ... The original TCCD systems are now obsolescent, and have been replaced by a newer version based on a commercial controller and an ESO-developed CCD head. ... Remote Observing . ... Before the VLT era, astronomers given observing time on ESO telescopes had to travel to Chile to carry out their observations. ...

... This year's most powerful solar flare was photographed by TESIS telescopes in the southern hemisphere of the Sun on July 5th, 2009. ... Events of such power are unique and are only observed during maximal solar activity. ... For two months, all the activity of the new solar cycle was connected with areas of this belt, including the first solar flares and coronal mass ejections of the year. ... Nevertheless, this year's largest solar flare occurred in the southern belt. ...

Brad Carter, Carolyn Brown, Rhodes Hart Drew Foster, John Kielkopf, Ron Moore University of Southern Queensland, Australia University of Louisville, Kentucky, USA OVERVIEW Mt Kent Observatory is now providing live remote observations of southern skies as part of a collaborative project between USQ, the University of Louisville, and Northern Kentucky University. ... This enables observers to make daytime use of a remote telescope during its local night-time, and image otherwise inaccessible skies. ...

... References: % observed energy levels : Shirai,T., Sugar,J., Musgrove,A., Wiese,W.L., 2000, J.Phys.Chem.Ref.Data, Monograph 8 % observed energy levels (12,21,22,25,29,34,37,39-42): Martin,W.C., Sugar,J., Musgrove,A., Dalton,G.R., 1995, NIST Database , Version 2.0, NIST Standard Reference Database 61. %comment: the following NIST observed energy ... References: %filename: fe_23.splups %oscillator strengths (n=2 levels): Zhang, H.L., Sampson. ...

... A distance-limited sample of southern Wolf-Rayet stars within 3 kpc of the Sun has been observed with the Australia Telescope Compact Array at 8.64 GHz and 4.80 GHz. ... Five sources are classified as non-thermal. ... We derive mass-loss rates for the thermal sources. After combining them with all existing radio mass-loss rates of Wolf-Rayet stars in the northern and southern hemisphere, we perform a comparison with mass-loss rates derived from optical emission lines. ...

... 1995, Cycle 5, GO-5847 , PI, 9 orbits. The nuclear disk in the E4 radio galaxy NGC 7052: evidence for a central black hole? ... 1996/97, Cycle 6, GO-6537 , CoI, 8 orbits. ... Nuclear kinematics of the dense globular cluster M15 . ... A Census of Nuclear Star Clusters in Late-Type Spiral Galaxies . ... A Census of Nuclear Star Clusters in Late-Type Spiral Galaxies: II - Spectroscopy and Stellar Populations . ... The Ages of Nuclear Star Clusters in Early-type Spiral Galaxies . ...

... Up: Proposal Processing . ... ESO is prototyping a distributed ``Phase II'' system that will allow astronomers to prepare their observations at their home institutions, while maintaining a central repository for all observation data. ... ESO is developing a Phase II Proposal Preparation system (P2PP) to collect detailed scientific programme descriptions, in the form of observation blocks (OB). ... ESO's Phase II Proposal Preparation system is an integral part of the VLT Data Flow System (DFS). ...

... Note: Click here a longer, much more comprehensive overview of the polar aurora . ... Magnetic Field . ... Aurora . ... 3b. Fritz Aurora . ... Electrons . ... Typical aurora (Dick Hutchinson ї) . In Alaska, Canada, Norway, Finland or northern Russia, on a clear night, a greenish glow is often seen in the sky, known as the "Northern Lights." ... Auroral light is produced at a height of about 100 km (60 miles) when fast electrons, arriving from space, slam into atoms and molecules of the atmosphere. ...

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