... 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 The original TCCD systems are now obsolescent, and have been replaced by a newer version based on a commercial controller and an ESO-developed CCD head.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. ...

... After making quite a show in the northern hemisphere in mid January, the comet moved south and developed a long and unusual dust tail that dazzled southern hemisphere observers starting in late January. Comet McNaught was imaged two weeks ago between Mount Remarkable and Cecil Peak in this spectacular image taken from Queenstown , South Island , New Zealand . ... Publications with keywords: Comet McNaught . Publications with words: Comet McNaught . ... The Iron Tail of Comet McNaught . ...

... 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 . ...

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. ...

Statistics of sunspot activity . ... The solar regions . ... NOAA 11300's . ... The fine bipolar sunspots were marked at the tenth parallel of the Northern hemisphere since 11.06 to 20.06.01. ... From time to time pores of opposite magnetic polarity were observed neighbouring the sunspot, and the total region's area reached 150 m.s.h. NOAA 09502 . ... The fine bipolar sunspots were observed at the mid latitudes of the Northern hemisphere since 15.06 to 17.06.01, in the Eastern part of the Sun disc. ...

... 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. ...

... Logout of current observing session if necessary . ... Select 'Line' from the observing modes . From the ' Choose receiver' widget: Choose ALFA & then 'Select this receiver now' . Dismiss widget . From the 'Observer's interface' select Pointing Control . Within Pointing Control click on ' catalog' . ... Leave this widget open (i.e. don't click 'dismiss') . ... Dismiss the 'New improved IFLO Control' widget. ... From the WAPP ALFA widget click on 'Configure WAPP ALFA' . ...

... Over the course of a week two secondary students James Hadnett and Liam Fields observed NEAs using one of two 2-Metre telescopes courtesy of the Faulkes Telescope Project which are positioned in the Northern and Southern Hemisphere. This was made possible with the aid of Las Cumbres Observatory who, with their Global Telescope Network, give educational establishments the chance to observe with a high grade telescope. ... Comet C/2012 F6 (Lemmon) observed on 2013 July 1st. ... 2013 July 5th . ...

... The concept of continuous solar wind developed in 1950's. First, Biermann (1951, 1957) observed comet tails as they passed close to the Sun , and explained the observed tail deflection by a continuous flux of protons from the Sun. Then Parker (1959) showed that the solar corona must expand, and called the outward streaming coronal gas 'solar wind'. ... The expanding solar wind drags also the solar magnetic field outward, forming what is called the interplanetary magnetic field (IMF) . ...

... GCN 8471 | ... TITLE: GCN CIRCULAR NUMBER: 8516 SUBJECT: GRB 081102: MASTER refind and final results DATE: 08/11/11 15:50:10 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.Parkhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State GCN Circ 8470, Lipunov et al., ...

Astronotes Armagh Planetarium's Stellar Blog! ... By admin March 6, 2013 Posted in: Comets and Asteroids . ... Comet PANSTARRS reaches perihelion, its closest approach to the Sun on 10 March, after this it will start to move away from the Sun and to be visible in the twilight sky to observers in the northern hemisphere. ... It was a very faint and delicate white ?feather? against a deep golden sky.€а It took quite some effort to find even with binoculars and I could not see it at all without them. ...

Next: Extinction efficiencies: general behaviour Up: Optical properties of cosmic Previous: Optical properties of cosmic . It is now evident that observed interstellar extinction cannot be explain using particles of only one kind. ... The intensity of radiation after passing a dust cloud is equal to . ... The interstellar extinction is . ... Next: Extinction efficiencies: general behaviour Up: Optical properties of cosmic Previous: Optical properties of cosmic root 2003-04-09 ...

... A similar level of effort is anticipated for HDF-S. We are maintaining a `clearinghouse' for supporting and follow-up observations of the HDF-S. Test observations of the HDF-S field were obtained in October, 1997. ... Simultaneous, parallel observations were made with the three HST instruments STIS, WFPC2 and NICMOS of separate, neighboring fields. ... Additional flanking field observations were made surrounding the deep STIS, WFPC2 and NICMOS fields. ... The red field is the main HDF-S WFPC2 field....

... The SMS program is a critical endeavor to investigate whether the predictions of standard cold dark matter cosmology are consistent with the observed matter distribution in the Milky Way halo. It is the deepest, most extended search for optically elusive dwarf satellite galaxies and tidal streams to date, covering the entire Southern hemisphere. ... However only a few dwarf satellites have been found around the Milky Way to date - 22 dwarfs compared to 500-10,000 predicted by theory (Klypin et al. ...

Short-Period Comets: Origin and Terrestrial Impact Hazard . ... The model is consistent with the basic observed distributions of near-parabolic comets, short-period comets, Centaurs and high-eccentricity trans-Neptunian objects.This model requires that initial objects in the early Solar System are concentrated to the outer planetary region, and the physical lifetime of comets in the inner planetary region at the present epoch is an increasing function of initial perihelion distances. ...

Next: This Work Previous: Rotation Periods of ZAMS Stars . ... There are currently several groups involved in the studies of the rotation periods of PMS stars. ... Overall, there are about 100 rotation periods known for PMS stars. ... Furthermore, the stars with periods near 8 days also tend to have infrared excesses which can be interpreted as arising from disks. ... In the first interpretation, the gap occurs because locking mechanism holds stars at a eight day rotation period. ...

We report here on those proposed UIT targets that, in fact, were successfully acquired. Where possible we provide an optical CCD image of the target or the field. ... A1 centered at 2500 angstroms with a width of 1200 angstroms . B5 centered at 1615 angstroms with a width of 150 angstroms . ... The exposure was 1174 seconds through B5. M31 southern field was imaged for 1045 seconds through the B5 filter. ... NGC 1291 a nearby elliptical galaxy was imaged for 505 seconds through B5. ...

... Moon . ... Observing . ... Cassini tracks clouds developing over a Titan sea . ... NASA s Cassini spacecraft recently captured images of clouds moving across the northern hydrocarbon seas of Saturn s moon Titan. ... Cassini tracked the system of clouds developing and dissipating over the large methane sea known as Ligeia Mare for more than two days. ... But since a huge storm swept across the icy moon s low latitudes in late 2010, only a few small clouds have been observed anywhere on the icy moon. ...