... 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. ...

... We construct a composite quasar spectrum from 149 HST FOS spectra of 80 quasars with mean redshift . ... The continuum longward of 1000? can be modeled as a power law with . ... The break in the power--law index is a feature expected in Comptonized accretion--disk spectra. ... The spectral features in the sub--Ly region of AGN spectra provide critical insights into the physical processes around the central engine, and they become accessible to IUE and HST at intermediate redshift. ...

The coordinates, diameters, altitudes and morphological features of all the craters of Mars exceeding 10 km in diameter, totaling 19 308, are compiled. ... The catalogue is intended for use by investigators of Mars, students, in comparative planetology and in the selection of craters for naming. ... 1 one terrace . 2 many terraces . ... 6 many hills and one ridge . 7 one hill and many ridges . ... 1 one crater . 2 many craters . ... Sample craters of different morphological categories . ...

Pwyll: Icy Crater of Europa . ... Credit Copyright: 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. ... NASA Official: Jay Norris. ...

... 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 | ...

... Next: FITS Checksum Verification Up: Data Models and Previous: A Proposed Convention . ... The FITSIO Subroutine Library has been available for 3 years, and has matured into a stable, full-featured interface for reading and writing FITS format files. ... The FITSIO subroutine library for reading and writing FITS files is now three years old and is used by many projects as the standard programming interface for accessing FITS format data files. ...

Joshua Tusin, Director of Public Relations for JYI , sent us the following description of the journal. ... Feature Editors . ... Inquire with the Director of Public Relations, Joshua Tusin, by e-mailing him at: tusin@jyi.org . The Journal of Young Investigators ( JYI , www.jyi.org) is an on-line science journal dedicated to publishing excellent undergraduate research papers and feature-type science articles covering all fields of science. ... Journal of Young Investigators (http://www.jyi.org) . ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Submit a letter to the editor . ... Astronomy Letters . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... List of Often Used Commands . ... Special Functions available for operations on keywords . Conversion between ASCII Files and MIDAS Tables . Commands to Define Tables . Commands to Display a Table . ... Commands to Transfer Table Data . Table Editor COMMAND Functions . ... Relation between FITS and MIDAS data types . ... Name translation between standard FITS keywords and MIDAS descriptors. ... Name translation between special non-standard FITS keywords and MIDAS descriptors. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. September 22, 1998 . M61: Virgo Spiral Galaxy . ... Explanation: M61 is a barred spiral galaxy located in the nearby Virgo Cluster of Galaxies . Visible in M61 are a host of features common to spiral galaxies : bright spiral arms , a central bar , dust lanes , and bright knots of stars. ... About APOD > . ...

... 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. ...

... Proposed directory for placement: pub/os2/apps/editors/ Your name: Olafur Gunnlaugsson Email address: oli@audiotools.com Program contact name: Thomas E. Dickey Program contact email: a.kohl@unix.net Program URL: http://invisible-island.net/vile/ Would you like the contact email address included in listings? no Operating System/Version: OS/2 Additional requirements: Replaces: pub/os2/apps/editors/vil70os2.zip Replaces: pub/os2/apps/editors/vile-os2.zip ...

... IRISH SCIENCE BOOK: A new book by the well-known Science Editor of the Irish Times, Dick Ahlstrom, will be launched at the RIA in Dublin on 17 March: it's called 'Flashes of Brilliance - The cutting edge of Irish science' This is the first book to highlight science research in Ireland and features 75 of the men and women whose work is transforming the world of science in Ireland today. ... The book collects articles from the 'Science Today' page of the "Irish Times". ... Clear Skies, Terry Moseley. ...

... Recent Topics . ... Dear Yaroslav S. Yatskiv, Submit Your Special Issue and be the Lead Guest Editor . ... Тема: Dear Yaroslav S. Yatskiv, Submit Your Special Issue and be the Lead Guest Editor . Submit Your Special Issue and be the Lead Guest Editor . ... Once you propose a Special Issue, you will be the Lead Guest Editor. The Lead Guest Editor is mainly responsible for promoting the Special Issue, collecting papers and organizing the guest editors to review papers. ... MAO NASU . ...

Typing ESC U causes the Common Output Area to be overlaid by a Unix shell window or, if the Unix shell is already present, causes the window to be popped down. The shell used is /bin/csh . ... Behind the scenes' Hermes will remain active, but because all typing goes into the shell, user communication with Hermes is not possible. ... Typing CTRL-X E causes the user to be prompted for the name of a file to be edited by a text editor which will overlay the whole terminal screen. ...

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 . ...

... Class . Use . ... FRAMES NO FRAMES All Classes . Packages that use Editor . ij.macro . ij.plugin . ij.plugin.frame . Uses of Editor in ij.macro . Methods in ij.macro that return Editor . ... Methods in ij.macro with parameters of type Editor . ... Uses of Editor in ij.plugin . Methods in ij.plugin that return Editor . ... Methods in ij.plugin with parameters of type Editor . ... Uses of Editor in ij.plugin.frame . Methods in ij.plugin.frame that return Editor . ...

... New Developments in the FITSIO and Fv Software Packages W. Pence NASA/GSFC, Code 662, Greenbelt, MD 20771, Email: pence@tetra.gsfc.nasa.gov Abstract. This paper describes recent improvements to the FITSIO subroutine library and the fv FITS file viewer and editor, both of which were initially described at previous ADASS conferences. ... Introduction The FITSIO subroutine library for reading and writing FITS format files was last described in the ADASS IV conference proceedings. ...

. NEdit is a popular GUI-style text editor for Unix and VMS systems. These are answers to the most frequently asked questions to discuss@nedit.org. This information is also available from: . ftp://ftp.nedit.org/pub/ <current>/FAQ, . and from the NEdit web page at: . http://nedit.org . Where to get information . Diagnosing and reporting problems . Building . Customization . Features . Server mode and nc . Editing techniques . Bugs . About the NEdit FAQ

... Enjoy a bit of astronomy history this month as we welcome Dr. Daniel W.E. Green, Astronomer at the Harvard-Smithsonian Center for Astrophysics, Editor of International Comet Quarterly, and Director of The Central Bureau for Astronomical Telegrams (CBAT). ... CBAT also maintains a Recent Comet Magnitudes Page which serves as a link between the work of amateur astronomers and the professional astronomical community. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...