... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2012 October 12 . Pan-STARRS and Nebulae . Image Credit: PS1 Science Consortium . ... Explanation: A single field from the world's most powerful survey instrument captures this spectacular skyview. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . NASA Web Privacy Policy and Important Notices . ...

The aromatic features in M101 were studied spectroscopically and photometrically using observations from all three instruments on the Spitzer Space Telescope. The global SED of M101 shows strong aromatic feature (commonly called PAH feature) emission. ... This implies that the weakening of the aromatic emission in massive star-forming regions is due primarily to processing of the dust grains in these environments, not to differences in how they form. ...

Astronomy Picture of the Day . ... 12.10.2012 . ... Credit Copyright: PS1 Science Consortium - Processing: Nigel Metcalfe, Gene Magnier and Peter Draper Explanation: A single image from the world's most powerful survey instrument captured this spectacular skyview. ... Built and operated by the Pan-STARRS project, the instrument features a 1.4 gigapixel (billion pixel) digital camera and telescope. ... October . ... October 2012 . ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... 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. ...

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. ...

... 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 . ...

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 . ...

... European Remote Sensing Satellite (ERS-1) was launched on 17 July 1991, and the follow mission ERS-2 (with the same sensors and an Ozone monitoring instrument added) was launched on 21 April 1995. ... ERS-2 has a fixed repeat cycle of 35 days, and follows ERS-1 tracks with one day's delay. ... Swath width is 102.5 km (telemetered), spatial resolution is about 25x25 m. The Advanced SAR (ASAR) instrument is carried by ESA's ENVISAT satellite launched on 1 March 2002. ... Swath . ... Spatial Resolution...

Images of Pluto taken by the NASA Hubble Space Telescope with the ESA Faint Object Camera. These images, taken in late June and early July, 1994 are the first views which allow resolution of features on Pluto's surface. ... The large lower images are processed versions made from a number of Hubble observations. ... Central Latitude/Longitude (deg): N/A . ... Instrument: HST ESA Faint Object Camera (FOC) . ... Illumination Incidence Angle (deg): N/A . ... Greenbelt, MD 20771, USA . ...

... PROBLEMS: "Unknown" (i.e. no physics model) components; What's a "Good-Enough-Fit" (e.g. Poisson)? ... ASIDE: MULTI-SCALE FOR POISSON - called Multiplicative Multiscale Innovation Models MMI Slides courtesy of R.Willett, SAMSI 2006 Timmermann Nowak, 1999 Kolaczyk, 1999 ASIDE: MULTI-SCALE FOR POISSON - called Multiplicative Multiscale Innovation Models MMI Slides courtesy of R.Willett, SAMSI 2006 Timmermann Nowak, 1999 Kolaczyk, 1999 ASIDE: MULTI-SCALE FOR ...

... 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 . ...

... Laboratory and theoretical modelling of the UV bump on the interstellar extinction curve is a very popular topic in dusty investigations. ... feature is illustrated by Fig. 10 where the profiles were calculated using the model of graphite spheres. Figure 10: Normalized extinction efficiencies for graphite spheres. ... The lower panel shows the summary extinction of two graphite spheres with radii and (from upper panel) taken in equal proportions. ...

... The Scientist's Expert Assistant (SEA) is a prototype effort for the Next Generation Space Telescope that uses a combination of artificial intelligence and user interface techniques to explore ways to substantially reduce the time and effort involved in proposal preparation for both scientists and the telescope operations staff. ... At the time, SEA supported only a single observation, had the basics of a graphical exposure calculator and a visual target tuner, and had a very limited expert system. ...

Semiconductor Home > Products > Mixed Signal and Analog > CCD IMAGERS Family > . SN761210, VIDEO-PROCESSING CIRCUIT . Device Status: Active . ... The SN761210 is a bipolar integrated circuit designed as a video processor for Texas Instruments CCD image sensors. ... During storage or handling, the device leads should be shorted together or the device should beplaced in conductive foam. ... Gain Control . ... Iris Control . ... Orderable Device . ...

... Bus Hound may be the very first product of its kind -- a software bus analyzer for capturing device I/O and protocol. ... When the capture buffer fills to capacity, Bus Hound can be configured to stop the capture process or continue capturing, keeping the most recent acquired data. ... IDE : Bus Hound captures command and data transfers for ATA and ATAPI devices. ... B us Hound captures I/O using a device driver. ... The below figure demonstrates how Bus Hound captures data for SCSI devices. ...

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Facilities . ATNF facilities . ... Australian Square Kilometre Array Pathfinder . Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . ... Visiting Parkes radio telescope . Visiting Australia Telescope Compact Array . ... Parkes radio telescope webcam . ...

... Using the DRAO Synthesis Telescope (Landecker et al. 2000), the Canadian Galactic Plane Survey ( CGPS ; Taylor et al. 2002) has captured a multitude of HISA features, the majority of which are invisible in prior surveys at lower resolution. ... Since the HISA gas temperature must be less than the background brightness temperature, all the H I shown in this poster has T ~ 100 K. Figure 1 provides panoramic views of the cold H I visible as HISA in the CGPS. ... GIFs: HISA + CO | HISA only | ...

Below is a table of INTERBALL-2 experiments summary to remind you about specific features of each instrument. ... See bottom of the page for additional information. ... AURORAL PLASMA . ... Spectra of electrons and ions 0.03 < E < 15 keV; anisotropy of electrons and ions (M = 1, 4, 16), 30 < E < 500 keV/Q . ... IKI, Moscow, Russia . ... Electron and ion spectra and anisotropy (M = 1, 2, 4, 16), 0.005 < E < 20 keV/Q . ... Ion composition (M = 1-32) and 3-D energy distribution, 10 eV < E < 30 keV/Q . ...

... SDO, AIA's data links with HEK event list . ... Select the instrument and time from the left panel and you are good to go. ... One can explore various events by selecting them in the HEK catalogue. ... It is fun way for kids to get first hand experience on Solar physics. Can be used to get scientific data from SDO. List all the events recorded on the Sun. Change the date to explore and the left panel to select evetns. Quick and easy access to SDO data. ...

... 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. ...