Bright Lights, Dark City . ... Usually, the reflection of city lights off of local air impurities makes it hard for casual observers to see more than a handful of stars from a bright urban area . A large power outage in northeast North America , however, dimmed most city lights and brought unfamiliar celestial wonders to many who looked up. ... Visible lights are mostly attributable to cars, local power generators, flashlights, and candles. ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... 2003 August 18 . Bright Lights, Dark City . ... A large power outage in northeast North America , however, dimmed most city lights and brought unfamiliar celestial wonders to many who looked up. ... Prominent in the above four-image digital montage are two of the few celestial wonders that can be seen even above the usual glare of city light pollution : the Moon and Mars . ... Tomorrow's picture: Mars Approaches . ... About APOD | ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... It's semi-common knowledge that stars twinkle and planets don't. By semi-common, I mean that a lot of folks know that, but I also mean it isn't strictly true. Stars twinkle because we see them from the bottom of a sea of air. ... These small bundles of air act like little lenses, bending light as it passes through them. ... What we see is the light from the star flickering. ...

. Album : asv-album :: Travels to distant places and countries :: 1997/08 Kyoto, Nara (Japan) :: 23/08 Ryoanji Temple and around . Up . << Prev . Kyoto city, as viewed from the hill. Right part of the panorama. Next >> . Powered by photo album generator a free tool by David on Tue Jun 23 14:46:19 2015 .

... Armagh Planetarium . ... Universe . ... Posted on December 3, 2015 | ... Continue Reading.. ... No Comments A spectacular multi-coloured fireball was witnessed in Ireland and Scotland by dozens of people on the evening of 29 November 2015. ... 1 Comment Is this a new dawn for suborbital travel? ... Hello, IтАЩm Colin, welcoming you to Astronotes, the PlanetariumтАЩs official blog. Here you will find the latest news and views from the fascinating worlds of astronomy and space exploration. ...

... The following table summarizes the useful wavelength range for each of the first-order gratings of GHRS. ... The following figures illustrate the resolving power as measured for each of GHRS' gratings. ... The nominal design specification for the GHRS was R = 20,000 for the first-order gratings, but in fact one can exceed a resolving power of 25,000 at virtually all wavelengths. ... Figure 8.2: - Resolving power for grating G140L. Sensitivity Functions for the First-Order Gratings . ...

I was wondering what conditions should be met to have the "darkest" sky .. ... Upon the above publication of the Southern Galactic hemisphere, TunГ Tezel started seeking opportunities to create the Northern counterpart image. ... So, the initial quest of having the darkest possible sky have delivered us these two all-sky images of the two galactic hemispheres as seen from Planet Earth. Zoomable and 'full-screenable' fisheye view of the "darkest sky" Southern Galactic Hemisphere image. ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . Monograph Publications . ... Publications of the ASP (PASP) . ... Bright-Lights, Big-City, Overcast Survival Guide . ... The total number of cloudy and partly cloudy days per year is, on average, 294. ... If you enjoyed this excerpt from a feature article and would like to receive our bi-monthly Mercury magazine, we invite you to join the ASP and receive 6 issues a year. home | ...

... August 19, 1999 . Light From The Dark Sun . ... Explanation: Only in the fleeting darkness of a total solar eclipse is the light of the solar corona easily visible from Earth. ... In this series of images recorded from Siofok, Hungary during the total phase of the August 11 eclipse, progressively longer exposures (top left to bottom center) have been used to more faithfully capture different regions of the elusive solar corona. ... About APOD > . ...

... title='K?niglich Tettau Achat Diamant Uni Сахарница 6 перс. Tettau - Tettau' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . title='K?niglich Tettau Ariadne Janice Кофейная чашка 0,21 л - Tettau' border='0' align='left' width='120' style='margin-right: 20px;' hspace='7' vspace='5'/> . ...

... Following the Observatory's initiative in 2002, drawing attention locally to the issue of light pollution and the problems it produces both for astronomy and awareness of the night sky, and for saving energy and improving the natural environment, Mark Bailey made a presentation on light pollution, on 7 May 2003, to the Armagh City and District Council Environment, Health and Recreation Committee. This focused specifically on the growing problem of light pollution in the City of Armagh. ...

. Search this album . Gallery . :: The First 100 Years . :: The 2.3m Advanced Technologies Telescope at SтАж . :: First light . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: First light . File name: 2p3mfirstlight.jpg . Dimensions: 423 x 432 px . Page: 1 2 6 7 8 9 10 11 12 13 14 15 16 39 40 . Powered by Gallery 3.0.9 (Chartres) . Login

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

These images from Swift's Ultraviolet/Optical Telescope (UVOT) show the nearby spiral galaxy M101 before and after the appearance of SN 2011fe (circled, right), which was discovered August 24, 2011. At a distance of 21 million light-years, it was the nearest type Ia supernova since 1986. ... Right: The supernova was so bright that most UVOT exposures were short, so this view includes imagery from August through November 2011 to better show the galaxy. ...

... SCIENCE AND BUSINESS . Such a trifle as a starry night sky of largest observatories turned out to be a small change coin in commercial bargains for exclusive communal services in Russia, and for a few elite flats in penthouses in Ukraine. SCIENCE AND BUREAUCRATISM . ... Till in Russian) . ... Clericalization of science and education (Till in Russian). ... Researcher of the Sternberg Astronomical Institute, The Moscow University. ... SAI home page . ... October, 2008) . ... November, 2007) . ...

Star formation is often best manifested by bright H II regions.These are regions of hydrogen which have been ionized by ultraviolet photons which are emitted from massive stars (typically stars more than 20 times the mass of the Sun). ... A narrowband filter image centered on this wavelength will then readily reveal these H II regions and hence the current sites of star formation in a galaxy, The luminous blobs that can be seen here are all H II regions . ... NGC 3558 Visual . NGC 3558 Infrared . ...

... 1971), Colla, et al. (1972), and Fanti et al. (1974). 2 name B2 name of source (char8, ex: '0512+24A') 1 cat Part of B2 catalog which contained the source (char4, example : 'B2.1') 3 dec_1950 radians Declination of source in radians (B1950) (real, example : 0.474555) 4 ra_1950 radians Right ascension of source in radians (B1950) (real, example : 5.125028) 5 dec_1950_deg degrees Declination of source in degrees (B1950) (real, ... Example (name) (char8): '0512+24A' . ...

... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Facilities . ... Australia Telescope Compact Array . ... Australia Telescope Online Archive (ATOA) . ... Computing: Getting started guide [internal access] . ... ASKAP Home . ... 29 January 2016 . The solar power station for CSIROтАЩs Australian SKA Pathfinder (ASKAP) telescope has been powering ahead at the Murchison Radio-astronomy Observatory in Western Australia throughout January. ...

... About meteorites . ... Meteorite Encyclopedia . ... About laboratory . ... On the night of September 24-25, in the north of Irkutsk Oblast, local residents saw a brightly glowing space object draw a line across the sky and fall into the taiga. ... But scientists learned of the heavenly visitor only on October 3, when a fax arrived at the Institute of Sun And Earth Physics from Bodaibo. ... The first thing we did was to interview residents of villages located along the meteor's flight path. ...