... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

Handling Systematic Errors Basics Define as errors in modeling of instrument Discuss how to handle systematic errors , not how to generate them Generating real systematic errors is very difficult Most are merely estimated Cal scientists asked to quantify systematic errors but quotes may be too simplistic Admonish users to avoid xspec syserr Systematic Error Effects parameters can depend on ... Generate many response functions (RFs) (see Drake et al. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Le plus puissant acc†йl†йrateur de particules de la Galaxie identifi†й . ... Le trou noir de 4 millions de masses solaires qui occupe le centre de la Voie lact†йe est tr†иs probablement la source des plus puissants rayons cosmiques produits dans la Galaxie. ...

Radiative Bhabhas in the IFR Nick Blount David Strom Babar Collaboration Meeting December 7, 2004 Table of Contents 3. ... Predicted Bhabha rate 5. ... Back of the envelope calculation of neutron hits in the IFR 7. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Alien Life . ... Space Flight . ... Prof. Pinklepot and the Aliens (Image credit: D-Signs and Displays ) . ... A sing-song concludes our visit to Planet Alien and the time-machine begins to start up again.€а We make our way back to Planet Earth and Professor Pinklepot thanks us for coming on this massive journey with him.€а The images used during the fly through space are stunning and we get a real sense of moving through the Cosmos. ...

... Collaborations | ... Special Astrophysical Observatory of Russian Academy of Sciences (SAO RAS) . ... Lebedev Physical Institute of Russian Academy of Sciences Astro Space Center (ASC) . Moscow, Russia . Institute of Applied Physics of Russian Academy of Sciences (IAP RAS) . ... Institute of Problems of Microelectronics Technology and High Purity Materials of Russian Academy of Sciences . ... A.M. Prokhorov General Physics Institute of Russian Academy of Sciences (GPI RAS) . ... IREE RAS ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... Astronomy Beat . ... World Beat: Croatia . ... by Vladis Vujnovic, University of Zagreb . ... Over the past several years, things have come together for Croatian astronomers, thanks largely to better communications with the rest of the world. ... Although Dubrovnik-born Rugjer Boskovic was a central figure in Newtonian physics during the 18th century, the first astronomical observatory was not founded in Zagreb until 1903. ...

Next: The Transmission Gratings Up: The Instruments Previous: The Instruments . ... A conventional cross-grid charge detector reads out the photo-induced charge cloud and the electronics determine an arrival time to 16s, and the position with a resolution of about 18 m or 0.37 arcsec. ... The Massachusetts Institute of Technology's Center for Space Research, in collaboration with Lincoln Laboratories, developed the detector system and manufactured the CCDs; Lockheed-Martin integrated the instrument. ...

The problem of eXtremely-Metal Deficient (XMD) galaxy ages. ... Problem of ages of XMD galaxies is addressed through the comparison of colours of stars in their outer regions (where one can neglect the effect of recent star-formation activity), with model tracks of evolving stellar populations from, e.g., the popular package PEGASE.2 (Fioc Rocca-Volmerange 1999). For some of XMD galaxies, the contribution of nebular emission in the light of outer regions is negligible or invisible. ...

Seven months ago, on Mar 19, 2008, at 09:12 Moscow time, a new star appeared on the sky. The Sun had already risen over the Russia, but people of the Western hemisphere might be able to see by their eyes a faint starlet near one of Bootes constellation stars. This starlet appeared and faded by an order of magnitude in a minute. Astronomers named it GRB080319B or, informally, the Naked-Eye Burst, as it was twice as bright as human eye can see a star. ... Royal Astronomical Society . ...

... Authors: The LIGO Scientific Collaboration, the Virgo Collaboration . arxiv:0910.5253 Первое точное определение параллактического расстояния до черной дыры (The first accurate parallax distance to a black hole) . ... SDSS 1257+5428: близкий массивный двойной белый карлик с нейтронной звездой или черной дырой в качестве компаньона (First Results from the Swarms Survey. SDSS 1257+5428: A Nearby, Massive White Dwarf Binary with a Likely Neutron Star or Black Hole Companion) . ...

Maidanak Laboratory is a part of Sternberg Astronomical Institute of Moscow State University. ... Observations are conducted with 1.5 meter RC telescope AZT-22 of Maidanak Observatory (Uzbekistan). rus . ... maidanak lab home page . ... at Sternberg Astronomical Institute . ... 2000). ... Because of technical reasons, we had to use three different CCD cameras in our observations, Pictor-416 camera in 1995, Pictor-416 and TI 800 x 800 cameras in 1997 and 1998, and ST-7 camera in 1999 and 2000. ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

Proposal Identification No.: ... Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) is a collaboration of scientists and students that uses many radio pulsars as a type of Galactic-scale detector in an effort to be the first to directly detect gravitational waves (GWs). ... This proposal requires coordination with GPS L3 at 1381 MHz. ...

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. ...

The IAA RAS . ... View details . ... Observatories 'Svetloe' and 'Zelenchukskaya' participate in frequent VLBI-observation sessions organized by the International VLBI Service for Geodesy and Astrometry . ... As part of collaboration with the U. S. Naval observatory in the areas of EOP determination and analysis the USNO uses IAA RAS daily EOP data obtained from SLR and VLBI. ... The IAA RAS and the Centre National d'Etudes Spatiales carry out joint DORIS observations on the Badary observatory. ...

... Copyrightї1997 Bob Yen (byen@ix.netcom.com) (http://www.comet-track.com/hb/hb.html) . ... Information on Comet Hale-Bopp for the Non-Astronomer Hale-Bopp rotates about twice a day (3/14/97) . ... The Comet Observation Home Page was been selected to receive the Griffith Observatory Star Award for the week of February 2 - 8, 1997 for excellence in promoting astronomy to the public through the World Wide Web. ... Typically, about 1,000 individual users/computers access this page every day. ...

ROBOTIC OBSERVATIONS OF INTEGRAL SOURCES IN THE OPTICAL DOMAIN Д Д Petr Kubanek1,2,4 , Rene Hudec 1 , John French3,4 , Jan Strobl1 , Martin Nekola1 , and Filip Munz1 1 Astronomicky ustav Akademie ved Ceske republiky, Ondrejov, Czech Republic ДД Д 2 INTEGRAL Science Data Center, Chemin d'Ecogia 16, Versoix, Switzerland 3 University College Dublin, Dublin, Ireland 4 for the Watcher Collaboration ABSTRACT ... The sources are monitored with BART[3]. ... IGR J00234+6141 error box. ...

Supernova 2000dx in UGC 1775 . This page is devoted to information on Supernova 2000dx in UGC 1775 Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main page . Information on the original web pages for many of these images can be found on the Supernova links web page. ... AUDE has a 2000dx page in French [ Translate ] . ... 15.3 . ... vsnet-alert 5375 ] SN 2000dx (Ewa) brighter! ... vsnet-campaign-sn 110 ] SN 2000dx bright: update . ...