Supernova 2009js in NGC 918 . This page is devoted to information on Supernova 2009js in NGC 918 . 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 updates and links web pages. Discovered independently by Lick Observatory Supernova Search (USA) and Koichi Itagaki (Japan). ... 2009/10/11.44 . 17.2 . ... Joseph Brimacombe . ...

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... GHRS IMAGEs and MAPs are obtained with the focus diodes (see Section on page 80 ) at the ends of the array of main science diodes. ... An IMAGE can only record the light in the 1.74 1.74 arcsec region of the LSA. ... A standard IMAGE will have a pixel spacing of 0.109 arcsec and will cover the entire LSA aperture of 1.74 1.74 arcsec. You may also select pixel spacings of 0.055 or 0.027 arcsec, with proportionately smaller regions of the sky covered in a 16 16 (the default) IMAGE. ...

Next: Noise distributions Up: Basic Concepts Previous: Basic Concepts . The acquisition of a data frame involves a spatial sampling and digitalization of the continuous image formed in the focus plane of a telescope. ... The individual pixel values are obtained by convolving the continuous image with the pixel response function . With a sampling step of and the digital frame is given by . ... A frame is oversampled when while for smaller sample rates it is undersampled. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Stars . ... Space Flight . ... This image of the Tarantula Nebula comprises one of the largest mosaics ever assembled from Hubble photos and includes observations taken by HubbleтАЩs Wide Field Camera 3 and Advanced Camera for Surveys, combined with observations from the European Southern ObservatoryтАЩs MPG/ESO 2.2-metre telescope which trace the location of glowing hydrogen and oxygen. ... Subscribe to Astronotes . ...

. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1994/09 London . Up . << Prev . London roads are marked very clearly (unlike Moscow roads :-) . That's all; the rest is on the slides which I cannot scan for now... Next >> . Photo album generated by album tool a Marginal Hack written by David on Wed Jun 5 20:38:26 2013 .

Standard analog magnetograms (20 mm / sec) are presented in the form of digital images, . ... Observatory, . ... 1949 , 1950 , 1951 , 1952 , 1953 , 1954 . ... 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , 1957 . ... 1950 , 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , 1957 , . ... 1950 , 1951 , 1952 , 1953 , 1954 , 1955 , 1956 , . ... The project was conducted in 2003 by the International Council for Science ( "Rescue of Old Analogue Magnetograms by converting to digital images" , ICSU Grant–2003 Project). ...

... The TRACE images may be used without restrictions in publications of any kind. ... These two images, taken on 18 November 2000 at 15:54UT and 16:11UT, respectively, show such an event: the red circle in the image to the left shows a region where many loops are cooling, with bright loop tops (the intensity scales with the square root of the image to reduce the dynamic range). ... See also a collection of images related to the Sun, other cool stars, and solar-terrestrial effects . ... Images | ...

... Image extraction is enabled by setting the name of the output file using the parameter imageset . The name of the columns to use for the and axes of the image are set using the parameters xcolumn and ycolumn . ... If no WCS information is available for a column, then the CTYPE keyword for this axis of the image is set to the name of the column, and the other WCS keywords are set to reflect the range and binning of this column, as is done for SPEC* keywords in spectral extraction. ...

... This chapter discusses image display, inspection and manipulation. Images can be displayed from IRAF both within the sunview (with Imtool) and Xwindow (with SAOimage ) environments. ... Summary of Tasks in This Section . ... fixsaoreg* -- restore SAOimage region to original image (physical) coordinates . display, xdisplay, xexamine* - Image Display . ... display, xdisplay* -- Displaying an image in detector coordinates . ... tvlabel, xexamine * -- sky coordinates from a displayed image . ...

Permitted Context: %text . ... The <IMG> tag is used to incorporate in-line graphics (typically icons or small graphics) into an HTML document. This element is NOT intended for embedding other HTML text. ... Browsers that cannot display in-line images ignore the IMG element unless it contains the ALT attribute. ... Take values TOP or MIDDLE or BOTTOM, defining whether the top or middle or bottom of the graphic should be aligned with the baseline for the text line in which the IMG element appears. ...

... Images and Data from the Shared Skies Partnership . ... Open access to selected images and data . Restricted access to user data . Restricted access for schools . Restricted access for the astronomy lab . Other Data and Image Resources . Sky View (internet virtual telescope) . SIMBAD Astronomical Database . ... International Astronomical Union Circulars (restricted access) . Sloan Digital Sky Survey Release 8 . Multimission Archive at Space Telescope . ...

... Supernova Remnant Imaged in Gamma Rays . ... With up to a billion times the energy of ordinary "medical" x-rays , they easily penetrate telescope lenses and mirrors, making it very difficult to create gamma-ray images of cosmic sources. Still, an array of large telescopes designed to detect gamma-ray induced atmospheric flashes - the HESS ( High Energy Stereoscopic System ) experiment - has produced this historic, resolved image of a supernova remnant at extreme gamma-ray energies . ...