... This year's eclipse is unique in duration. ... Although, at the present time, there are 6 solar observatories belonging to leading space agencies in orbit around the Earth, the eclipse of 22 July, 2009, will only be seen by two of them: the Russian CORONAS-PHOTON satellite equipped with TESIS telescopes and Japan's HINODE satellite fitted with an XRT space telescope. ... TESIS will be the first of the two devices (and the very first on Earth) to witness the solar eclipse. ...

pn Filter Wheel Closed Data . ... XMM-Newton SOC Home Page Conferences & Meetings . ... Data Analysis SAS News What is SAS? ... The following links contain pages to the merged Filter Wheel Closed event lists corresponding to the different EPIC-pn modes. ... Fast Modes . ... Burst Mode (BU) Below you can find relevant reports and proceedings about EPIC-pn Filter Wheel Closed exposures, such as spatial, temporal, and spectral properties of the internal background. ... EPIC-pn: background calibration . ...

... How close could you be to witness Arizona's meteor crater form and still live to tell the tale? ... RELATED TOPICS: METEORS . If the Barringer Meteor Crater impact event in Arizona occurred in a modern city, it would completely destroy it. ... If the energy was sufficiently small, one could have had a spectacular view of the impact event from Anderson Mesa, a long volcanic ridge about 15 miles (24 kilometers) west of the crater. ... Get instant access to subscriber content on Astronomy.com! ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Observer's Delight . Mercury, July/August 2003 Table of Contents . ... In late August, Mars will come as close to Earth as it ever gets. ... On the down side, Mars also experiences dust storms. ... But during Mars?s last close approach in June 2001, several regional dust storms converged to form a single giant dust storm that covered the entire surface except for the polar regions. ...

Gaspra . ... On October 29, 1991, Galileo came within 1,600 kilometers (1,000 miles) of Gaspra. ... These two color views of the asteroid Gaspra were produced by combining three images taken through violet, green, and infrared filters by the Galileo spacecraft on October 29, 1991, from a distance of about 16,000 kilometers (10,000 miles). ... The earliest view (upper left) was taken 5 hours, 45 minutes before closest approach when the spacecraft was 164,000 kilometers (102,000 miles) from Gaspra. ...

All teams have to inform the Olympic Coordinating Council (OCC) and the Local Organizing Committee (LOC) about their participation not later than the dates determined by the Acting Statutes/Regulations on the International Astronomy Olympiad . ... Leaders of official teams of states have to present to the OCC necessary personal information about every leader, participant and observer (if any) not later than 9 weeks before the beginning of the Olympiad. ... Passport data: 8.1.( Passport no . ...

Organisateurs: Michel Balazard (CNRS, Laboratoire Poncelet) , Michael Tsfasman (CNRS, Laboratoire Poncelet, Institut des Probl mes de Transmission de l'Information) , Alexey Zykin (Laboratoire Poncelet, Haute Ecole d'Economie) . ... Informations g n rales . ... Informations pratiques . ... Arnaud Chadozeau (Paris) . ... We present a result on the density of rational points of bounded height close to the graph of a smooth real function. ... Laboratoire Poncelet . ...

... The bright supernova (hereafter SN) in the galaxy NGC 4527 was first sighted by S. Knight (USA) on April 13.17UT at magnitude ~14.0v. The report of the sighting was subsequently forwarded by phone to the AAVSO. ... SN 1991T. The galaxy NGC 4527 is an Sb(s)II type galaxy with an apparent Blue magnitude of 11.32 (Shapley-Ames, 1981). ... An analysis of this event utilizing visual observations by amateurs, plus a light curve is presented.. ... THE LIGHT CURVE: . ... ISN SN 1991T web page . ...

Next: Phase Dispersion Minimization Up: Period Analysis Previous: Period Analysis . Period determination for short period stars is performed by observing target fields several times per night for several consecutive, or closely spaced, nights. ... First the individual frames are debiased and flat--fielded, then fluxes within a four arcsecond aperture around each star (targets and randomly chosen background stars) are extracted. ... Phase Dispersion Minimization . ...

... First of all, you can obtain a map of the final coordinates of your objects and guide stars by using the command: PLOT/OPTOPUS [table] [label] [EW_flag] , . where [table] is the table output by REFRACTION/OPTOPUS . ... In order to avoid object misidentifications at a later stage, and for a cross identification between object identifiers and hole numbers, it is recommended to bring a printout of the table output created by the command REFRACTION/OPTOPUS to the telescope. ...

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

... Home Observing UACNJ-Jenny Jump State Park . ... Clear Sky Chart . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... UACNJ has an excellent facility in Jenny Jump State Park in northwestern New Jersey that is available to the member clubs. ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by...

So the evidence for Dark Matter is fairly overwhelming. ... Theory: if the Universe is closed then all the luminous matter seen in galaxies contributes only 0.5% of the mass required to eventually halt the expansion . ... This means that galaxies are surrounded by dark matter halos which trapped baryonic gas (e.g. hydrogen) and turned it into stars. ... WIMPS - weakly interacting massive particles created in the extremely early universe . ... Theory 99% of the Universe is Dark Matter . ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

... Up: Software Applications . ... Described is a Tcl/Tk application suite that helps expedite operations at Hat Creek Radio Observatory (HCRO). ... Xscribe provides an integrated environment for maintaining the schedule and summary of observations. Xplore is a sky chart based calibrator selector. ... The predecessors of the BIMA Xfiles were Unix C-shell (csh) scripts with command line interfaces. Tcl/Tk scripting allowed for rapid development of graphical user interfaces (GUIs). ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

... You, as usual, were summoned to close this Gate and get back to Earth as quickly as possible. ... You must close this Gate, go back to Dante, seal any remaining Gates there, and return to Earth. ... If you plan to use this as a base for any levels on your own, tell me about what you're going to do with them and I will tell you if you can do it. ... If you're going to be distributing this WAD, tell me. ... If you're going to sell this WAD file (as part of a collection or on its own), tell me first! ...

... Art Swedlow, Dave Siegrist, Eileen Myers, Nina Craven and I were able to see and image the comet on the top section of a Maynard parking garage. It was invisible in my 10 power x 25mm binoculars but was clearly seen with a pair of 8-power x 50mm ones. 2.5-second image, EF 24-105mm, f/4L at 105mm f/5, Unmodified Canon T1i, ISO 800, Tripod, processed with Adobe Photoshop. 19:47 hrs EDT (23:47 UT), 13 March 2013, Maynard, MA Parking Garage. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Apr 13 2015 Corvus - The Crow Observed: No Object NGC IC IC IC NGC IC IC IC NGC 4263 3819 3824 3825 4726 3834 3833 3838 4802 Her Type Non-Existent Sb Non-Existent Non-Existent Non-Existent Non-Existent S0 Non-Existent Non-Existent Non-Existent Non-Existent S0 Mag Alias/Notes 12.6 NGC 4265 MAC1250-1422 very close by MAC 1250-1422 very close by MAC 1250-1428 in the area 14.8 NGC 4740 IC 3834 ... Glxy SB(r)0/a Glxy SB(s)m pec? ...