WFC3 Instrument Handbook for Cycle 24 . ... Wide Field Camera 3 Instrument Handbook for Cycle 24 > Chapter 1: Introduction to WFC3 > 1.3 Key Features of WFC3 . ... Key Features of WFC3 . The optical design of WFC3 features two independent channels, one sensitive at ultraviolet (UV) and optical wavelengths, approximately 200 to 1000 nm (the UVIS channel ), and the other sensitive at near-infrared (near-IR) wavelengths, approximately 800 to 1700 nm (the IR channel ). ...

... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > The response curve leaves residual instrument features in my science. ... Observing Facilities . ... Observing with ESO Telescopes . ... Science Data Products Forum . ... Science Archive Facility . ... ESO Data . ... ESO Data Access Policy . ... ESO Science Newsletter . ... To can be avoided by flat-fielding the flux standard star spectrum with the same flat field as is used for the science data. ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... Coronado€о Solar . ... Spotting Scopes . ...

... UA SCIENTIST & TEAM DISCOVER SURFACE FEATURES COVER TITAN (Science contacts: Peter H. Smith, (602) 621-2725; Mark Lemmon, (602) 621-1485; UA Lunar and Planetary Laboratory) . Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ... Upper left: hemisphere facing Saturn. ...

Next: stecf.impol - Package Tasks Up: stecf.impol - an IRAF Previous: stecf.impol - an IRAF . All the instrumental set-up, such as filters, polarizers, rotation angles, etc. are read from the image headers. Many input images ( 3 < N < 64) can be processed. ... Output images can be rebinned to increase the polarization signal-to-noise per output pixel. ... Output error images have fully propagated statistical errors from the input error images. ...

... 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. ...

... Credit: VIMS Team , U. Arizona , ESA , NASA Explanation: If seen in the right light, Saturn glows like a neon sign. Although Saturn has comparatively little of the element neon , a composite image false-colored in three bands of infrared light highlights features of the giant ringed planet like a glowing sign . At the most blue band of the infrared light featured, false-colored blue in the above image , Saturn itself appears dark but Saturn's thin rings brightly reflect light from our Sun. ...

Scientists Discover Surface Features on Titan . ... Scientists for the first time have made images of the surface of Saturn 's giant, haze-shrouded moon, Titan. ... Peter H. Smith of the University of Arizona Lunar and Planetary Laboratory and his team took the images with the Hubble Space Telescope during 14 observing runs between Oct. ... About three weeks before Cassini's first flyby of Titan, the spacecraft is to release the European Space Agency's Huygens Probe to parachute to Titan's surface. ...

... Archives . ... ArXiv] 5th week, Apr. ... highlighting some equation that is widely used in astrophysics or astrostatistics. ... The expected signal, M(E?, p? ,t) is then compared with the collected data to infer the values and uncertainty in theta , the parameters that define the source model. ... Tags: ARF , effective area , EotW , Equation , Equation of the Week , LRF , point spread function , PSF , response matrix , RMF , source . ... Chandra Blog . ... SAMSI AstroStat Prog. ...

... 2002 April 13 . Pwyll: Icy Crater of Europa . Credit: PIRL , Galileo Project , NASA . Explanation: The impact crater Pwyll (a name from Celtic Mythology ) is thought to represent one of the youngest features on the surface of Jupiter's moon Europa . A combination of color and high resolution black and white data from NASA's Galileo spacecraft was used to produce this view looking down on the crater with the sun illuminating the scene from the right. ... About APOD | ...

Intricately structured filaments of gas and dust compose the reflection nebula seen around the Pleiades star cluster. These multiwavelength images were presented to the American Astronomical Society meeting in San Antonio, TX on January 16, 1996. Click here for the press release text . ... The Schmidt data were processed further after this photo release; better versions are now available.] Get image: 512x512 (56k) / 1024x1024 (204k) . Pleiades Far-Infrared Heated Dust Emission . ...

... Tonight's Sky . ... News . ... New Horizons finds blue skies and water ice on Pluto . ... Pluto s Blue Sky: Pluto s haze layer shows its blue color in this picture taken by the New Horizons Ralph/Multispectral Visible Imaging Camera (MVIC). ... Who would have expected a blue sky in the Kuiper Belt? ... In a second significant finding, New Horizons has detected numerous small, exposed regions of water ice on Pluto. ... New findings from New Horizons shape understanding of Pluto and its moons . ...

Next: Infrared Imaging Data Reduction Software and Techniques . ... Economou, F., Jenness, T., Cavanagh, B., Wright, G. S., Bridger, A. B., Kerr, T. H., Hirst, P., & Adamson, A. J. 2001, in ASP Conf. ... ORAC-DR is a flexible and extensible data reduction pipeline suitable for both on-line and off-line use. ... The ORAC-DR pipeline design was presented previously by Economou et al (1998) and Jenness & Economou (1999) and makes extensive reuse of existing data reduction packages (Economou et al. ...

... Ж.Ф. Родионова, А.А.Карлов, Т.П. Скобелева и др. ... Sternberg State Astronomical Institute, 119899, Moscow, Russia; jeanna@sai.msu ru. ... Moscow State University, Vorobjovy Gory, 119899, Moscow, Russia. Brown University - Vernadsky Institute Microsymposium 34, October 8-9, 2001, Moscow, Russia . ... Rodionova J1., ... Sternberg State Astronomical Institute, Moscow University, jeanna@sai.msu.ru . ... 1 Sternberg State Astronomical Institute Lomonosov Moscow University, Russia; marss8@mail.ru . ...

Next: CCD Operation Up: Charge Coupled Devices (CCDs) Previous: Charge Coupled Devices (CCDs) . ... However it is only now that a number of important X-ray astronomical applications of CCDs have reached critical development stages, so that this is an appropriate time to review the application of space-borne CCD instruments to cosmic X-ray astronomy, and highlight the particular concerns which are being addressed for X-ray instruments, as distinct from optical applications. ...

... Example of an Association Table . ... CCD commands . ... ROMAFOT Command List . ... Commands of the context LONG . ... Command parameters (1) . ... Checklist of necessary table files . ... Observation Summary Table with file classifications appended in column :EXPTYPE and :OPATH as defined and applied in Table . ... Columns for star-catalog table files . ... Passband columns of the instrument table file . ... Detector columns of the instrument table file . ... Columns of the gain-table file . ...

... We have started a programme of observations of nearby starburst and AGN galaxies with MICHELLE, with the aim of investigating the spatial extent of "Unidentified Infrared Bands (UIB)" emission in these galaxies, and in particular relating these to multi-frequency matched resolution radio maps. ... The spatially integrated MICHELLE spectrum of NGC 7469 in the 8 - 11.5µm range shows an equivalent width of 11.3µm UIB feature which is much smaller then measured by ISO. ...

The AstroGuide . ... Other Sites . ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Escambia Amateur Astronomers Association is a local club that serves the people interested in amateur astronomy. The web site features astrophotos, project guidelines for the construction of a telescope and accessories, a Kid Stuff section, and more. ... Web Site . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . ...

... Dr. Max Tegmark, Associate Professor of Physics, MIT . ... Dr Tegmark’s research is focused on precision cosmology, that is, combining theoretical work with measurements (CMB, gravitational lensing) to place constraints on cosmological models and their free parameters – how the underlying physics (dark matter, dark energy, gravity) can be tested rather than assumed. ... Click for more on Dr. Tegmark . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... April, 2010: APOLLO detects lost Soviet reflector . October, 2009: LCROSS event. May, 2009: APO featured on PBS film 400 Years of the Telescope . April 3, 2009: For the International Year of Astronomy , APO is featured in a 20-minute segment during a 100-hour webcast. ARC 3.5m | ... Instrument News: Current Status . Instrument Summary . ... ARCES (Echelle) . ... Current Weather . Weather Status . ... Weather Plots . ... APO Password Access . 3.5m Nightlogs . ...