Astronomy Picture of the Day . A Protected Night Sky Over Flagstaff . ... 16.04.2008 . ... USNO Explanation: This sky is protected. Yesterday marked the 50 year anniversary of the first lighting ordinance ever enacted, which restricted searchlight advertisements from sweeping the night skies above Flagstaff , Arizona , USA . ... April . April 2008 . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Publications with keywords: night sky . Publications with words: night sky . ...

... 2008 April 16 . A Protected Night Sky Over Flagstaff . ... Explanation: This sky is protected. Yesterday marked the 50 year anniversary of the first lighting ordinance ever enacted, which restricted searchlight advertisements from sweeping the night skies above Flagstaff , Arizona , USA . Flagstaff now enjoys the status of being the first International Dark Sky City , and maintains a lighting code that limits lights from polluting this majestic nighttime view . ... About APOD | ...

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. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

Moon, Planets And Aurora, Oh My! Articles | ... Moon | ... How often do we see several planets and the Moon together? ... Then I look northeast and see more red through all the light pollution of Washington, D.C. I snapped this 15 second photo. ... What started out as a father son photographic safari for rare planet conjunctions turned into a spectacular night of memories. ... Aha, I see some red light near Orion. ... A Very Rare Red Aurora in Northern Virginia, . ... www.astronomy.net . ...

home publications > mercury . ... Publications of the ASP (PASP) . ... Exploring Invisible Skies . ... One of the tools these students are using?a radio telescope?explores an invisible part of the electromagnetic spectrum, radio waves. ... From listening to music on the radio to talking on our cell phones, radio waves are the means used to get information across large distances. ... Radio waves also give us information about the Universe complementing information obtained at other wavelengths. ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

... What makes planets evolve into habitable worlds n Local questions u u u The quest for distance drove us to large light buckets The need for resolution dynamic range drives to large apertures in space. 10m optical coronagraph D.R . 1010 Terrestrial exoplanets Exploration 10m optical ~/D CS disks rings Exozody clouds 10m optical coronagraph Giant exoplanets Young exoplanets ~ ...

Astronotes Armagh Planetarium's Stellar Blog! ... Our Galaxy . ... Universe . ... Space Flight . ... Posted on April 2, 2013 | ... Continue Reading.. ... Posted on December 1, 2011 | 20 Comments Space will never be conquered! ... Posted on November 24, 2011 | ... Posted on October 20, 2011 | 1 Comment Our galaxy, the Milky Way, is just one of an enormous number of galaxies spread throughout a vast Universe, which is expanding.Everyone knows these facts now, but how do we [ ] . ...

... 2000, ApJ, 537, L49 . ... F. Palla . Invited Talk at the IAU Symposium 200 "The formation of binary stars" eds. R.D. Mathieu and H. Zinnecker (ASP Conf. Ser.) in press . Optical follow-up of ROSAT discovered candidate members of the open cluster Coma Berenices . ... 2000, A , in press . ... 2000, ApJ, in press . ... 2000, ApJ, in press (Sept. ... 2000, ApJ Lett., in press . ... Click to examine publications from other years . ... Star Formation Group . ... Arcetri Home Page . ...

... About ATNF overview . ... Governance overview . Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Our people overview . ... Australian Square Kilometre Array Pathfinder . ... Australia Telescope Compact Array . ... Very Long Baseline Interferometry . ... Australia Telescope Online Archive (ATOA) . ... Observing schedules . ... ATCA . ... Square Kilometre Array overview . ... Australia Telescope 20GHz Survey . ... Visiting Australia Telescope Compact Array . ...

... Comet Ikeya-Zhang, designated C/2002 C1 (Ikeya-Zhang), is named after Kaoru Ikeya of Shizuoka prefecture, Japan, and Daqing Zhang of Henan province, China, who independently discovered it on the night of 1 February 2002. A preliminary orbit reported the following day indicated that it would come moderately close to both the Earth and the Sun and that it might become visible to the naked eye during late March and April 2002. ... Bailey, M.E., Clube, S.V.M. and Napier, W.M. The Origin of Comets . ...

Galactic Wind Shells and High Redshift Radio Galaxies . ... M.Krause . Astronomy & Astrophysics, v.436, 845-851 . Very Light Jets II: Bipolar large scale simulations in King atmospheres [small version] . ... Simulations of Astrophysical Jets in Dense Environments . M.Krause, V.Gaibler & M.Camenzind . in: High Performance Computing in Science and Engeneering '05 eds.: E.Krause, W.J ger & M.Resch. ... M.Krause & M.Camenzind . ... Martin Krause & Paul Alexander . ... Martin Krause . ...

... Science . ... The Local Sphere of Influence (LSI) survey is a deep near-IR (H-band) survey of galaxies residing in the Local Sphere of Influence ( D < 10 Mpc). The images with a typical surface brightness limit 4 mag fainter than 2MASS (24.5 mag arcsec -2 < SB lim < 26 mag arcsec -2 ) have been obtained with IRIS2 on the 3.9~m Anglo-Australian Telescope. 11 of the observations have resulted in non-dections or the images were saturated by foreground stars. ... Copyright 2007 Emma Kirby. ...

... 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) ...

... More information on books, telescopes, clubs, etc. is available in the Getting Started section. ... For more information call 617-495-7461. Boston University Astronomy Department - Public telescopic observing is held every clear Wednesday night. ... Boston Museum of Science - For more information and admission prices call 617-723-2500. ... For information and admission prices call 508-929-2700. ... Springfield Telescope Makers , VT. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Volodymyr Kuzkov, Sergii Kuzkov, Zoran Sodnik - Direct measurements of laser light aberration from the ARTEMIS geostationary satellite through thin clouds // arXiv.org - New resalts to paper at Conference ICSOS-2014, Kobe, Japan, May 7-9 (2014), S4-4, [view pdf file] . ... Kuz'kov V., Volovyk D., Kuzkov S., Sodnik Z., Pukha S. - Realization of Laser Experiments with ESA'S Geostationary Satellite ARTEMIS. ... Preparation to Optical Communication Experiments With ARTEMIS Satellite. ... V.P. Kuz`kov. ...

... Home Lectures Lecture Series 2011-2012 Lecture Series 2011-2012 ? тАЬA Ray of Light in a Sea of Dark (Matter)тАЭ ? Charles Keeton . ... Charles Keeton , associate professor of physics and astronomy at Rutgers University and faculty director of the Aresty Research Center for Undergraduates , will speak to the AAA Friday, March 2, on тАЬA Ray of Light in a Sea of Dark (Matter).тАЭ The free public lecture begins at 6:15 p.m. in the Kaufmann Theater of the€а American Museum of Natural History . ...

... Team . ... GRB mini-workshop 2006 . ... On April 8, 2005, an optical afterglow of the GRB 050408 was discovered with the SAO's telescopes (the 1-meter telescope Zeiss and 6-meter telescope BTA) within the framework of a joint BTA request (SAO RAS + IAA CSIC, Granada, Spain) on optical identification of gamma-ray bursts. We first detected a variable object only by our own data in the localization error-box reported by the space observatory HETE and then it was confirmed by our observations in SAO. ...

... 1994: . Deep CCD images of the bright gamma-ray bursts GRB790418 and GRB790613 localization regions were obtained for the first time. In both cases, a faint blue star-like object (V = 24.5 m , BV m ) was detected within the region of localization of gamma-ray bursts. ... Based on sixty daily instantaneous spectra of the object SS433, obtained on the RATAN-600 in April-May 1994, we traced its variability in four very powerful flares at five frequencies. ... Archive . ...