WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Chapter 7: IR Imaging with WFC3 > 7.1 WFC3 IR Imaging . 7.1 . WFC3 IR Imaging . As described in Chapter 2 , the optical design of WFC3 features two independent channels, each with its own separate optics, filters and grisms, and detectors. ... Only a single channel, either UVIS or IR, can be used at any one time. ... The previous chapter, Chapter 6 , describes the UVIS channel. ...

Next: Emission-line galaxies Up: The Hamburg/SAO Survey for Previous: Data reduction . In total 217 candidates were observed during the January - June, 1995, of which 34 objects were observed with the 6m telescope, 183 objects with the Calar Alto 2.2m telescope, and 4 with both instruments. ... For 11 of the known ELGs we measure emission line ratios and make quantitative classification. ... Emission-line galaxies . ... Objects without emission lines . Absorption-line galaxies . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Astronomy for Kids . ... Meade Instruments Corp. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

. english || русский . Main . Location . Telescope . Instruments . Program . Science . Publications . Images . Photos . Links . The following focal instruments are currently available at the telescope: . CCD-photometer . TFOSC -- medium and low resolution spectrometer . ( The page at TUG ) . High resolution echelle-spectrometer in coude focus . High Energy Astrophysics Department 2016 IKI RAN

... Instrument Status . Science Verification . ... CRIRES . ... SV observer shall submit their proposals using the Science Verification proposal template Proposers are asked to provide at least a short summary of the science goal, coordinates and magnitudes of GS and science target, a finding chart , the observing wavelength ID, as specified in appendix A of the UM and DIT, NDIT settings of science detectors as computed with the exposure time calculator (see below). ... with a 0.2 arcsec slit. ...

... LIGO makes waves, Australia follows up . ... Last month, physicists at LIGO made waves with the announcement that elusive gravitational waves - ripples in space time caused by a violent cosmic event taking place in the distant Universe - had finally been observed 100 years after Albert Einstein predicted their existence. The Australian radio telescopes involved in the EM follow-up observations were ASKAP and the MWA, located at CSIRO's MRO in Western Australia. ... today * ATNF | ... ASKAP | ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

... This is possible at modest cost due to the low moments of inertia of the telescope and enclosure. ... This same performance will be achieved in higher winds when the telescope enclosure is facing away from the wind, or by using wind screens. ... The telescope system (MILT) will be remotely operable with an on-site operator's assistance by an astronomer located at one of the ARC member institutions. ... Mean Wind Speed . ... Offsets > 10 deg: 1 arc sec rms max . ... 5 sec max, tracking to tracking . ...

... MODE = PrimePartialW2 / Instrument configuration CALIBRATION_ MODE _1 = PrimePartialW2 / Mode used to calibrate events from CCD 1 CALIBRATION_ MODE _2 = PrimeFullWindow / Mode used to calibrate events from CCD 2 CALIBRATION_ MODE _3 = PrimeFullWindow / Mode used to calibrate events from CCD 3 CALIBRATION_ MODE _4 = PrimeFullWindow / ... The DATA_MODE_n parameters indicate the data mode (determined by the oal ) the n-th CCD was in during the exposure. ...

... At 22:42:27 UT 26/07/09, the Burst Alert Telescope (BAT) on board of the SWIFT multi-wavelength space observatory triggered and located GRB 090726 gamma-ray burst event. ... About half an hour after the BAT trigger, the first images were obtained with the SAO RAS Zeiss-1000 telescope in four BVRI filters (see Fig.1). ... The spectrum of the optical transient was obtained with the SAO RAS 6-m BTA telescope 1.54 hours after the burst, using the SCORPIO instrument in the spectroscopic mode (Fig.2). ...

This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... The current focus is through about 1920, and filling out the history of the Cambridge location, and buildings. ... Because I'm also interested in the history of printing and image reproduction, some of the information here will emphasize that viewpoint. ... All images plus additional timeline notes (138) . ... Selina Bond (0) . ...

Meade Instruments Corporation 27 HUBBLE, IRVINE, CALIFORNIA 92618 U.S.A. (949) 451-1450 FAX: (949) 451-1460 www.meade.com Windows 7(64-bit) Installation Instructions for AutoStar Updater 5.9.2 1. ... The new Autostar update file will download to your computer. ... Double click on the Au2.EXE file to begin installation of the new Autostar updater software. ... Installation of the new Autostar Updater begins. ... Select Install. This will install the LS telescope drivers for Windows 7 64-bit. ...

Astronomy Discussion Forums . Forums: . Atm ћ Astrophotography ћ Blackholes ћ Blackholes2 ћ CCD ћ Celestron ћ Domes ћ Education . ... Discussion Forums . ... Location,location,location! Forum List | ... Post Message | ... www.astronomy.net . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... This appendix describes how to use the JavaScript console to evaluate expressions and display error messages to the user. ... Displaying Error Messages with the Console JavaScript 1.2 and earlier versions. ... You can specify whether to automatically open the console when a JavaScript error occurs or to display a dialog box for each JavaScript error. ... To open a dialog box each time an error occurs, add the following line to prefs.js : user_pref("javascript.classic.error_alerts", true); . ...

... From the top-level of the Apache source tree, type: cd support [ENTER] . ... From support/suexec.h /* * HTTPD_USER -- Define as the username under which Apache normally * runs. ... See the suEXEC documentation for more detailed * information. */ #define USERDIR_SUFFIX "public_html" /* * LOG_EXEC -- Define this as a filename if you want all suEXEC * transactions and errors logged for auditing and * debugging purposes. */ #define LOG_EXEC "/usr/local/apache/logs/cgi.log" /* Need me? ...

... Questions: . ... Find some information on the design and potential of the Advanced Gas Turbine. ... Find some information on the frequency and amount of oil spills which occur in the world's oceans in a given year. ... We don't care how many you get correct. However, of the questions there, explain which one had an answer that most surprised you and how should that answer affect our future policies? ... Find some information about the history of Dam failures in the US and Canada since 1900. ...

... The IVOA Data Access Layer (DAL) working group is defining a Simple Spectral Access (SSA) protocol for accessing 1D spectra and SEDs. ... The survey consists of two parts. ... Elodie: 25000 extracted Echelle spectra, resolution 42000, 4000 - 6800 ? ... ISO 1D Spectral Data: 10000 files, 2.4-197 micron, resolution 40-30000 . ... XMM-Newton 1D Spectral Data: XMM/RGS, 20000 spectra (expected), 0.35-2.5 keV, resolution 200-800; XMM/EPIC, 1.5 mio. spectra (expected), 0.35-15 keV, resolution 20-50 . ...

... Startling Star V838 Mon . ... Headed for the first close-up exploration of the Pluto-Charon system and the icy denizens of the Kuiper belt, NASA's New Horizons spacecraft is pictured here in an artist's vision of the robot probe outward bound. Moonrise Through Mauna Keas Shadow . ... Hurtling through space a mere 3,000 miles above the Martian surface, the diminutive moon Phobos (below and left of center) was imaged against the backdrop of a large shield volcano by the Viking 2 Orbiter in 1977. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. October 21, 1999 . Follow The Spots . Credit: Louis Strous ( LMSAL ), SOHO - MDI Consortium, ESA , NASA . ... Just follow the sunspots . ... It shows the Sun's visible surface for most days of August 1999 so that the same sunspots appear many times as the solar rotation carries them across the face of the Sun . ... About APOD > . ...

Plasma phenomena occuring at one place in the magnetosphere also affect other locations This linkage is most pronounced between points that share the same field line, since field lines guide the motion of ions and electrons. ... It follows that the places on Earth most sensitive to distant magnetic effects are the "polar caps" , the regions around the magnetic poles. A good example is the polar aurora . ... way polar field lines . ... and to the Sun . ... Next Stop: #26H. Polar Cap--History . ...