... 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. ...

... It is notoriously difficult to identify weak cosmic ray events in long exposure observations. ... The method is to compare the probability distribution function (PDF) of cosmic ray events between an observation and a dark frame matched in exposure time. We illustrate the basic idea using dark exposures from a Tek 1024 1024 CCD with varying exposure lengths and read-out times. ... Figure: Histogram of cosmic ray events in a two hour dark frame. ... Original PostScript figure (78 kB) . ...

... Editor's choices for the most educational Astronomy Pictures of the Day about clusters of galaxies: . APOD: 2006 March 21 - The Coma Cluster of Galaxies . ... APOD: 2005 November 22 - A Galactic Collision in Cluster Abell 1185 . ... A prominent example occurs on the left of the above image of the rich cluster of galaxies Abell 1185. ... Recent observations of Abell 1185 have found unusual globular clusters of stars that appear to belong only to the galaxy cluster and not to any individual galaxy. ...

... Credit Copyright: Juan Carlos Casado ( TWAN ) Explanation: Can you find the Summer Triangle? It's not hard to find this famous triangle of stars this time of year from northern locations. Just look straight up after sunset and find three of the brightest stars in the sky that nearly form a triangle . ... Pictured above is a 360 degree full sky projection framing not only the Summer Triangle but the great arch of our Milky Way Galaxy. ... NASA Web Site Statements, Warnings, and Disclaimers . ...

... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Australia Telescope 20GHz Survey . ... Bright prospects: Comparing the H Survey with large-scale radio continuum emission . ... Prospects for comparisons between the AAO/UKST H \ survey and large-scale radio continuum emission are considered, with particular reference to the recently completed Parkes 2.4-GHz survey of the southern Galactic Plane. ...

... We present ultraviolet and optical spectra of the bright (V=16.5), high-redshift ( ) QSO HE1122 - 1649 (Reimers et al. 1995a,1995b). ... Keywords: absorption lines . ... The combined data are shown in Figure 1. ... The Ly profile reveals an absorbing subcomponent at in agreement with results from heavy element absorption lines detected in the high resolution optical data. ... Figure: Velocity profiles of heavy element absorption lines arising in the damped Ly system as seen in the optical data. ...

... Package . Class . ... PREV PACKAGE NEXT PACKAGE . FRAMES NO FRAMES All Classes . Class Summary . ... Displays the ImageJ Channels window. ... Implements the Image/Color/Color Picker command. ... This plugin implements the Brightness/Contrast, Window/level and Color Balance commands, all in the Image/Adjust sub-menu. ... ImageJ plugin that does curve fitting using the modified CurveFitter class. ... Implements ImageJ's Paste Control window. ... This is ImageJ's macro recorder. ...

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

... This represents the first HI selected sample covering the core and the outskirts of a local cluster of galaxies. ... Optically selected samples miss a considerable number of low luminosity, low surface brightness galaxies underestimating by almost a factor 2 the number of HI rich galaxies present in the cluster volume. ... Right: The g band luminosity function for galaxies in the A1367 volume as obtained from the optically (circles) and HI (histogram) selected sample. ...

Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...

Star formation is often best manifested by bright H II regions.These are regions of hydrogen which have been ionized by ultraviolet photons which are emitted from massive stars (typically stars more than 20 times the mass of the Sun). ... A narrowband filter image centered on this wavelength will then readily reveal these H II regions and hence the current sites of star formation in a galaxy, The luminous blobs that can be seen here are all H II regions . ... NGC 3558 Visual . NGC 3558 Infrared . ...

... The sample of the Local Volume galaxies (distance smaller than 10 Mpc) gives a unique opportunity to study the properties of galaxies including the weakest objects: the absolute magnitude M B -10 and the virial mass M vir 10 9 M x263C;. ... Luminosity function of the Local Volume galaxies. ... The luminosity functions for galaxies are presented: red dashed line - from the 2dFGRS survey (Norberg et al. 2002); blue dash-dotted line - from the SDSS survey (Blanton et al. ...

. Next: Computational Astrophysics . Up: Preface . Table of Contents -- Index . Author Index . Subject Index . Search expression on this server: Search syntax . You may use "and", "or" and "not" in a search. For example, compare the results of a search for "midas and aips" to the results of searching for "midas" alone, or to the results of searching for "midas and not aips". Copyright 1998 Astronomical Society of the Pacific, 390 Ashton Avenue, San Francisco, California 94112, USA . amicol@eso.org

filecommander (2.50-alpha16) squeeze; urgency=low * Alpha 16 - Optimise directory compare to be faster when comparing directories with a very large number of files. Improve the way the Make Archive dialog creates the target archive file name. Fix loading of [Archiver:TAR/XZ] config section. ... Enable TAB to switch between left & right panels when in full width mode. Fix display update bug when a left full width panel has a very long full path. ...

... Forum . ... Recent Topics . ... MAO main . ... Anthropocene Editor's Choice . ... Отправлено: Tue, 01 Sep 2015 13:26:18 +0300 (EEST) Тема: Anthropocene Editor's Choice Access Anthropocene Editor???s Choice papers @media only screen and (max-device-width: 480px) { } p { margin-top: 1em; margin-bottom: 1em; margin-left: 0em; margin-right: 0em; color: #53565A; } img { display:block; -ms-interpolation-mode:bicubic; } Can't see this email properly? ... Volume 5, 32-41. ... MAO NASU . ...

The vi editor (pronounced "vee eye") is available on all UNIX systems: other editors are not. Being able to use vi ensures that you will always have an editor available to you. ... About vi commands . Using UNIX commands . Starting vi and opening files . Saving files and exiting vi . Viewing a file . Entering text . Cutting and pasting text . Moving around the text . Moving around the screen . Deleting text . Searching for text . Replacing text . ...

... Three ` flavours'of binning and discard: · Discard 9 rows , readout 1 row, cut 10:1, resolution 1.75ms · Discard 90 rows , bin 10 rows , cut 10:1, resolution 2.76ms · Discard 95 rows , bin 5 rows , cut 20:1, resolution 2.76ms · Compared with normal timing : · 100 rows and readout, no cut, resolution 1.75ms Bin · Tested on XMM on Crab during rev 333 - 3 October 2001 Crab - rev 333 - Bright timing ... Counting mode and FIFO full errors. ... Crab - rev 333 - Bright timing mode ...

... This is called disk buffering , and the memory used for the purpose is called the buffer cache . Since memory is, unfortunately, a finite, nay, scarce resource, the buffer cache usually cannot be big enough (it can't hold all the data one ever wants to use). ... On the one hand, data that is written is often soon read again (e.g., a source code file is saved to a file, then read by the compiler), so putting data that is written in the cache is a good idea. ...

... The MIDAS release 94NOV is the 9th official release of portable MIDAS. A number of new applications have been added to this version. ... It enhances the line editing capabilities of MIDAS, like a history stack of commands, Emacs or Vi editing functions, command and filename completion functions, and a communication channel to the MIDAS GUI Xhelp for a help-on-line function . ... For a more complete list of all updates/additions use the MIDAS command HELP [NEWS] after having installed this release. ...

FITShdr' package contains set of utilities, that allows to display or modify FITS-file headers (FITS MEF included). ... Both source tarball (see INSTALL ) and i386 RPM are available for downloading: fitshdr-current.tar.gz size: 36379 MD5 checksum: 1e7222149ca36696797a6e0f4af41afc SHA1 checksum: 990bdf69f67d2b989d2d6e044deeaf9128d4470c fitshdr-1.0.6-1.i386.rpm size: 539101 MD5 checksum: 19e046da52b3ec8dd89aaed9e806bb5d SHA1 checksum: 07a4b4e2bd96a4c9fda7dc65127d0b80130c97e1 ...