... Астронет | ... 2002: Possible comet around the pulsar PSR1257+12 (courtesy Daniel Fischer) . ... A possible fourth, Saturn-like, planet at ~ 40 UA (Joshi & Rasio 1996, Wolszczan 1996) . ... Planetary system around the pulsar PSR 1257+12 . ... Is there a comet cloud around PSR 1257+12? ... Are there really planets around PSR 1257+12? ... abstract . ... Implications of the PSR 1257+12 Planetary System for Isolated Millisecond Pulsars. ... On the verification of the planetary system around PSR 1257+12 ...

Site Map . ... Files in red?history) . ... Magnetic Field . ... Elias Loomis of Yale University compiled, in 1860, a map marking how many times in an average year were auroras observed in various locations (click here to see his map). ... However, it was only in 1954 that auroral electrons were actually observed, by detectors aboard a rocket launched into the aurora by Meredith, Gottlieb and Van Allen , of Van Allen's team at the University of Iowa. ... Experimental simulation of the polar aurora . ...

Visitor Information and Housing Request . Please note: APO accommodations are not available to the public . Read this page carefully, and please submit this form 30-working days in advance of your arrival. ... When on-site accommodations are full, APO will assist you in obtaining off-site housing. ... To cancel an existing reservation, enter the name and arrival date and choose "cancel." ... Complete the name and arrival date in the fill-in form and select Cancel . ... Room #1/Dorm A . ...

The sections <Directory> , <Location> and <Files> can contain directives which only apply to specified directories, URLs or files respectively. Also htaccess files can be used inside a directory to apply directives to that directory. ... The order of merging is: . ... If multiple <Directory> sections apply to the same directory they are processed in the configuration file order. ... Using the options in question is only possible inside a <Directory> section (or a .htaccess file). ...

... In this vibrant, eye-opening tour of milestones in the history of our universe, Chris Impey guides us through space and time, leading us from the familiar sights of the night sky to the dazzlingly strange aftermath of the Big Bang. ... Cambridge 2010, ISBN: 978-0521180665, Paperback $28.99 . ... Finding the Big Bang . ... As a prelude the book traces the evolution of some of the notions of modern cosmology from the late Middle Ages up to the final acceptance of the concept of galaxies in 1925. ...

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Posted on June 1, 2015 | No Comments June is finally upon us, and the summer is officially in full swing. ... Continue Reading.. Posted on May 20, 2015 | ... Posted on March 27, 2015 | ... 3 Comments Already the year 2015 is proving to be a great year for stargazing with planets, comets and meteorites gracing the skies but prepare for March as it brings a тАШmicro [ ] . ... Posted on February 4, 2015 | ...

CFITSIO Interface Library CFITSIO is a library of ANSI C routines for reading and writing FITS format data files. ... The CFITSIO library is built on Unix systems by typing: > ./configure [--prefix=/target/installation/path] > make (or 'make shared') > make install (this step is optional) at the operating system prompt. The configure command customizes the Makefile for the particular system, then the `make' command compiles the source files and builds the library. ...

Blackholes2 Forum Message . Forums: . ... Discussion Forums | ... Post . ... Reference . Forum List | ... Post Message | ... http://arxiv.org/abs/physics/0310001 . ... But I read this one and an earlier one comparing Greek and Indian science, by the same author. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... I would several points which we faced during our everysolved for better quality of individual ACs' and EOP products · There are two main EOP products provided by two IERS Product Centers on Earth Orientation (Earth Orientation Center (EOC) and Rapid Service/ Prediction Center (RSPC)). ... However, the latter is not provided by the IERS. ... ITRF · Using ITRF in computation of EOP series produced by various ACs seems to be a necessary condition to provide the consistency between the IERS products. ...

... Tonight's Sky . ... Observing . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... How do light pollution filters work? Do they actually help? ... Light pollution reduction (LPR) filters work because many outdoor lighting sources do not shine evenly across the visible spectrum. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... X. 2015 Kazan, Tatarstan, Russia English Read once more before you start your work General note. Maybe not all problems have correct questions. Some questions (maybe the main question of the problem, maybe one of the subquestions) may make no real sense. In this case you have to write in your answer (in English or Russian): «impossible situation ­ ». ... Data from the tables (Planetary data, stars, constants, etc.) may be used for solving every problem. ... 2015 Kazan, Tatarstan, Russia ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

... Measurement of the MASS detectors parameters with mass program January 24, 2015 [112707] . MASS/DIMM electronics. ... Turbina-core(D): Dimm User Guide. ... N.Shatsky, V.Kornilov, The revision of the MASS/DIMM star catalogue. ... О.Возякова, В.Корнилов, Н.Шатский, Новое программное обеспечение прибора MASS/DIMM. ... V.Kornilov, N.Shatsky, S.Potanin, O.Voziakova, B.Safonov Preliminary results of astroclimate parameters measurements at the Sternberg 2.5m telescope installation site. ...

... I am involved in Project Astro, a program to bring astronomers into public schools to assist with teaching students about science and astronomy. ... While there are all sorts of scale model of the Solar System type exercises ( Mitchell Charity's page has a good listing of what's available), none were really tailored towards discovering the spatial relationships of the planets, and in a way that could be done at night as part of a Star Party. ...

... Corresponding authors will receive an e-mail with a PDF file of paged proof for checking and correction. The file can be read and edited using Adobe Acrobat Reader (version 9 and higher) which can be free downloaded via the Internet ( http://get.adobe.c om/reader/ ). ... You can use text correction tools to make corrections (after selecting the necessary text fragment). ... For users of Adobe Reader 9: . ... to insert text without replacing the existing text, use the "Insert text at cursor" tool. ...

Download Izmccd (~2.7 MB). ... If you want to calculate equatorial coordinates of object: . Click the " File " menu, and then click " Open " ; or press  on toolbar. Choose a file with image. ... Also see section " Viewing of image ". ... Before, if it is necessary, you must make an account dark current and flat field (See section " Preliminary processing of images ".) ... Measure the marked stars. ... Click the " Calculations " menu, and then click " Coordinates " or . ...

... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...

... Appl. 154 (2007) 1894-1897 http://arxiv.org/abs/math.GT/0606470 [3] M. Cencelj, D. Repovs and A. Skopenkov, Codimension two PL embeddings of spheres with nonstandard regular neighborhoods, Chinese Annals of Mathematics, Series B, 28:5 (2007) 603-608. http://arxiv.org/abs/math.GT/0608653 [4] A. Skopenkov, A new invariant and parametric connected sum of embeddings, Fund. ... 5] A. Skopenkov, A classi cation of smooth embeddings of 3-manifolds in 6-space, Math. ... 11.12.2007 A. Skopenkov ...

New GCVS Versions for Three Southern Constellations Peremennye Zvezdy (Variable Stars) 27, No. ... We are currently working on a version of the General Catalogue of Variable Stars (GCVS) revised taking into account the new data accumulated since the 4th GCVS edition. ... It will contain all stars of the 4th GCVS edition plus a complete catalogue of the stars added to the GCVS in the Name Lists of Variable Stars Nos. ...