I would like to propose two new features for the axes annotation in the GMT. 1st: In astrophysics, we often work with great ranges of values (many orders of magnitude). ... However, GMT 3.2 allows to plot annotations for log10 axes every integer log10 value or even more frequently. The proposed patch allows to specify large steps for the log10 axes, in the form illustrated by an example below. 2nd: 10^0 instead of 1, and 10^1 instead of simply 10 do not look beautiful. ... The patch is here. ...

... Telescopes . ... Diameter of circular antenna . ... Number of antenna elements . ... Geometrical area . ... Effective area of full circle . ... Wavelength range . ... Frequency range . ... 2 arcsec . ... Flux density limit . ... Absolute brightness temperature limit . 0.050 mK . ...

... Format - gziped PostScript, gziped tar (LaTeX + PS files), or others . Please pass the following information to V.B. Il'in (by e-mail or by phone 1842243): . ... how to reach the files; . what is the format of the files. The preprint file(s) can be transferred to V.B. Il'in by e-mail (after uuencoding), on a diskette, or in other ways. You do not need to transfer the file(s) if you give a link to it (them) in your directory accessible via the WWW . ...

Astronomy Picture of the Day . ... On September 7th, the first quarter Moon and passing clouds contributed to a dramatic night sky over the Byurakan Astrophysical Observatory. ... Equinox: The Sun from Solstice to Solstice . ... Today is an equinox, a date when day and night are equal. Tomorrow, and every day until the next equinox, the night will be longer than the day in Earth's northern hemisphere, and the day will be longer than the night in Earth's southern hemisphere. ...

Modules | ... Apache HTTP Server Version 2.2 . Apache > HTTP Server > Documentation > Version 2.2 . ... This document describes the terms that are used to describe each Apache module . ... This indicates how tightly bound into the Apache Web server the module is; in other words, you may need to recompile the server in order to gain access to the module and its functionality. ... Modules which are not included with the base Apache distribution ("third-party modules") may use the "External" status. ...

This service contributes to the International Service of Geomagnetic Indices (ISGI) of the IAGA . ... The Kp numbers of the previous month are available in tabular format . ... There are available also historical and current Kp and derived indices per anonoymos FTP (see below). ... U.S.A. FTP server: ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/KP_AP/ . monthly update) . ... contains the monthly Kp / ap tables in a simple text format readable for both humans and computers (*.tab). ...

... Tonight's Sky . ... Sky this Month . ... milky way . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Astronomy for Kids . ... Sky Events . Get to Know the Night Sky . ... Is there any way photons could contribute to the mysterious dark matter? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

The FSP3 event includes those parts of the magnetic conjugations between any couple of four considered spacecraft, which satisfied to the FSP1 or to the FSP2 criterion. ... The value of the relative geocentric angular distance between magnetic field line's footprints is considered during FSP3 situation selection. The mentioned angular distance value less then 5 deg is used as a criterion of the magnetic conjugation. ... for the first SC the red color and the first line are used, . ...

The Doppler shift is the effect of sound increasing or decreasing in pitch as an object moves towards or away from you. ... Light works the same way, except light is shifted to redder colours when an object is moving away, and to blue colours when an object is travelling towards us. ... Almost every object he observed had its light stretched to redder colours, indicating essentially everything in the Universe was moving away from us. ... So the Hubble constant tells us how old the Universe is. ...

LIF Marseille and Institute for Information Transmission Problems, Moscow, Russia. E-mail: alexander.shen AT lif.univ-mrs.fr, sasha.shen AT gmail.com . ... Kolmogorov complexity, algorithmic information theory . Teaching (mathematics, computer science): Independent University of Moscow, Moscow State University, Moscow mathematical school No 57. ... Kolmogorov memorial conference, Moscow. IEEE Conference on Computational Complexity, Aarhus (Denmark), ("Kolmogorov day") . ...

... The bright supernova (hereafter SN) in the galaxy NGC 4527 was first sighted by S. Knight (USA) on April 13.17UT at magnitude ~14.0v. The report of the sighting was subsequently forwarded by phone to the AAVSO. ... SN 1991T. The galaxy NGC 4527 is an Sb(s)II type galaxy with an apparent Blue magnitude of 11.32 (Shapley-Ames, 1981). ... An analysis of this event utilizing visual observations by amateurs, plus a light curve is presented.. ... THE LIGHT CURVE: . ... ISN SN 1991T web page . ...

... October Monthly Meeting - Amateur Contributions in the Era of Surveys . ... Thursday, Oct 9, 2008 at 8:00 PM . ... Commercial CCDs and telescopes make this possible at modest cost for bright objects, and large, wide field professionalsystems like PanSTARRS and LSST extend coverage to fainter magnitudes. ... Please join us for a pre-meeting dinner discussion at Changsho, 1712 Mass Ave, Cambridge, MA at 6:00pm before the meeting. ... Oct . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... A bright flare-up of emission (>1000 Jy) was found in OH-maser source during tests of 18cm receiver in observations with Kalyazin 64-m radio telescope (August 2004). ... Appendix (The list of used acronyms) ASC Cold Plate DC Astro Space Center of Lebedev Physical Instutute cooled LNAs and antenna feed hermetic device container (part of payload ); it contains Formatter, Rb oscillators, synthesizer, control unit and is placed under dish DM Device Module = DC + H-maser EGSE ...

... This is possible at modest cost due to the low moments of inertia of the telescope and enclosure. ... This same performance will be achieved in higher winds when the telescope enclosure is facing away from the wind, or by using wind screens. ... The telescope system (MILT) will be remotely operable with an on-site operator's assistance by an astronomer located at one of the ARC member institutions. ... Mean Wind Speed . ... Offsets > 10 deg: 1 arc sec rms max . ... 5 sec max, tracking to tracking . ...

... Published by the Bureau of Astronomical Communications . ... TITLE OF THE ARTICLE IN RUSSIAN . ... This text contains Instructions for our Authors; at the same time, it shows the general layout of a contribution to the Astronomicheskii Tsirkulyar as it will appear published in the electronic form or printed on paper. ... The text of your article starts here. We accept articles in all branches of astronomy. ... 1543-1548, Information for Authors), text taped and figures drawn on paper. ...

... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

... The European HST Archive has been moved to ESA's European Space Astronomy Centre ( ESAC ), Spain, where most of ESA's Space Science Archives are located and operated from. ... The Space Telescope European Coordinating Facility (ST-ECF), jointly operated by ESA and the European Southern Observatory ( ESO ) was, until the end of 2010, the European HST science facility, supporting the European astronomy community in exploiting the research opportunities provided by the Hubble Space Telescope. ...

Stellarium 0.12.3 . ... FileљStructure . ... varstar Struct Reference . QStringљ . ... Magnitude at maximum brightness. ... Magnitude flag code. ... First minimum magnitude or amplitude. ... Second minimum magnitude or amplitude. ... The photometric system for magnitudes. ... Definition at line 41 of file StarMgr.hpp . ... QString varstar::photosys . ... QString varstar::stype . ... QString varstar::vtype . ... The documentation for this struct was generated from the following file: . ...

... 8, ``Celestial Mechanics'', 2002 Two problems in solar systems dynamics, possible solutions and future A. Fienga IMCCE­Observatoire de Paris, Paris, France In this contribution, two major aspects of the new challenges of the solar system dynamics are presented. ... As it was demonstrated by (Standish and Fienga [4]), the perturbations of the Mars orbit by the asteroids are difficult to modelize and they present now the main limitation of the present theory of Mars motion. ...

I/199 Lick Northern Proper Motion Program: NPM1 Catalog (Klemola+ 1987) =============================================================================== = Lick Northern Proper Motion Program: NPM1 Catalog Klemola A.R., Hanson R.B., Jones B.F. <Astron. ... Positions are given for equinox B1950 and computed epoch 1950. ... Other data given for each star are: the original mean epoch, a stellar class code, the number of NPM fields measured, and discrepancy flags for position, proper motion, and photometry. ...