Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Alien Life . ... Space Flight . ... NASA astronaut Reid Wiseman, Expedition 40/41 flight engineer, participates in an Extravehicular Mobility Unit (EMU) spacesuit fit check at NASA?s Johnson Space Center. Image credit: NASA) . Step up the next astronaut who really took on the task of showing us earthlings the wonders of being an astronaut on the International Space Station (ISS) Reid Wiseman . ...

... Judged by their instrumental profiles, spectrometers fall into two basic classes---Lorentzian and Gaussian---with many other line profile functions (sinc functions, Voigt functions, Airy functions, etc.) falling into one of these two categories in some limit. We demonstrate that the Rayleigh, Sparrow, and Houston resolution criteria are of limited use compared to the ``equivalent width'' of the line profile. ... Rayleigh criterion. ... All of these functions have continuous higher derivatives. ...

... Circumstellar disc of beta Pictoris: constraints on grain properties from polarization. To appear in the Astronomy & Astrophysics . abs , src , ps ] . ... Dust influx to Titan from Hyperion . ... abs ] . ... Characteristics of bulges and disks in interacting galaxies . ... Dust grains around Herbig Ae/Be stars: porous, cometary-like grains? ... To appear in the Astronomy & Astrophysics Supplement . ... Finally, Links may lead you to more options (e.g. via the LANL preprint system). ...

To understand the command syntax apply the following simple rules: . Any options or arguments enclosed in [] square brackets are optional. Anything not enclosed in [] square brackets must be entered. ... This usually applies to the command name and command options. Arguments shown in italics must be replaced by whatever it is that they represent. This is usually the name of a file or directory. Ellipses ' ... ' mean that the previous argument can be repeated any number of times. ...

... There are TPM log files for every night of the dark run except for the nights of 08 October and 14 October 1999. ... The figures below are plots of the MIG data with the y-axis in TPM MIG units (real MIG units*1000) and the x-axis in seconds since midnight. ... Figure: Plot of MIG values vs elapsed time from midnight 10 October 1999. ... Figure: Plot of MIG values vs elapsed time from midnight 08 October 1999.The plot starts recording data from 21:26:52.0 on that day. ... 11/24/1999 ...

... In the 1800s it was already evident that the Earth's magnetic field was involved: auroral rays seemed to follow the Earth's magnetic field lines, and the frequency with which aurora was observed depended on the distance from the magnetic pole, not from the geographic one. ... That is the beginning of the ionosphere , a layer with enough free electrons (and ions) to play an important role in radio communications. ... The simplest atom is the one of hydrogen, with just one electron. ...

... The task also issues a number of housekeeping related messages and values and also writes several keywords to the EXPOSURE extension (the information is usually CCD-dependent and it is thus important that it is kept and propagated through the event file processing chain). ... Filter: the filter wheel position is derived from the position sensor potentiometer (housekeeping column F1122 contained in the main periodic housekeeping file PNPMH1 , HK mnemonic H_CE_FWSPOT). ...

... One striking feature is a small source of almost pure H 2 line emission, which is located near one of the compact sources in Orion reported by O'Dell and collaborators (HST-18 = 203-504). ... H-H objects, Proplyds, Orion Bar, H 2 . ... We obtained a series of images across the bright rim of the Orion Bar near the peaks of mm-wave molecular line emission with NICMOS cameras 1-3 (NIC1, NIC2, NIC3) in several filters on 1998 February 18. ... The suggestion of an H-H object does not seem compelling. ...

Solar Large-Scale Chains: Some Events . ... The chains appear to light up separators or quasi-separatrix layers between different interacting large-scale magnetic flux systems in the global solar magnetosphere and, in particular, to outline large-scale coronal structures involved in the CME process. ... Some features of the chains and their relations to CMEs are illustrated for a number of halo CME-associated events. 23 events of 1997-2000 . ... Halo-CME-associated events of November 1997 . ...

... Go to This section of the glossary . ... APHELION : The point in a planet's orbit where it is farthest from the sun. ... It melts at 83.95 K, and boils at 87.45 K. Many people don't realize that argon makes up a full 1% of our atmosphere, while carbon dioxide is only a fraction of a percent of our atmosphere. ... COMET: An object moving about the sun in an eccentric orbit and composed of materials which, on warming up near the sun, form a "tail" which always points away from the sun. ...

Have you ever heard the name of a star or constellation and wondered what it meant? ... I've compiled a table of commonly known star names and their definitions in the Western tradition, grouped by constellation. ... Following each constellation entry are any named stars found therein (in order from brightest to faintest), listing the Bayer (Greek letter) or other common designation, the star name, and English translation. ... Some other sites with star name information: . ...

... Classes . ... StelQGLViewport Class Reference . ... Definition at line 84 of file StelQGLViewport.hpp . ... Definition at line 132 of file StelQGLViewport.hpp . ... Definition at line 337 of file StelQGLViewport.hpp . ... Definition at line 351 of file StelQGLViewport.hpp . ... Definition at line 304 of file StelQGLViewport.hpp . ... Definition at line 359 of file StelQGLViewport.hpp . ... Definition at line 247 of file StelQGLViewport.hpp . ... Definition at line 148 of file StelQGLViewport.hpp . ...

General Information . ... Local Information . ... The city represents great cultural value because in the late 19th and early 20th centuries, Kislovodsk as a fashionable spa attracted many musicians, artists, and members of the Russian aristocracy. ... Double room with full pension (breakfast, lunch, dinner) - 2620 rubles per person per night. solnechniy . ... Citizens of most countries need visa to enter the Russian Federation. ... Victor Kornilov, Sternberg Astronomical Institute (chair) . ...

... sed 's/-t=//'` shift continue;; -b=*) transformbasename=`echo $1 | sed 's/-b=//'` shift continue ;; *) if [ x $ src = x ] then src =$1 else # this colon is to work around a 386BSD /bin/sh bug : dst =$1 fi shift continue ;; esac done if [ x $ src = x ] then echo $0: no input file specified 2 exit 1 else : fi if [ x $dir_arg != x ]; then dst =$ src src = if [ -d $ ... IFS='%' set - `echo "$dstdir" | ...

Physicists have been honored by having their picture on currency in many countries around the world. ... Marie and Pierre Curie (Marie: 1867-1934, Pierre: 1859-1906) appear on the French 500 franc note. ... The greatest physicist of this century, Einstein not only invented the theories of special relativity (behavior of rapidly moving object) and general relativity (theory of gravitation), but made fundamental contributions to the beginnings of quantum theory. ... For a bio, click here . ... 100 K) . ...

OptInt PmWiki : Pm Wiki / Internationalizations . ... PmWiki supports internationalization (internationalisation) of web pages, allowing accented characters to appear in page names and almost complete customization of PmWiki's prompts. Most customization is provided via the XLPage() function in PmWiki, which loads a set of translation variables from a wiki page (typically named XLPage, but it can be named anything you wish). ... For example, to select French language prompts, one would specify . ...

... Recent Topics . ... Forum . MAO main . Info . Definition of Polarization Angle . info . ... От: "Claus Leitherer" . ... Тема: Definition of Polarization Angle . ... Please take note of the attached IAU recommendation concerning the definition . of the polarization angle in astronomical measurements. ... www.mao.kiev.ua/images/postbyemail/Polarization.pdf . ... Board Categories MAO main - Info - MAO - news - Flame Technical - Technical Support(Forum)(Техподдержка(Форум)) . ...

... V838 Mon is a member of a new class of eruptive variables which appear as a peculiar novae having late K-M type spectra in their outburst. Before its outburst, it was a wide binary system of B3V type stars. ... The B3V companion was seen in the outburst in the UV spectrum taken with HST (Rauch et al., ... In the latest spectra, the light of B3V companion was predominating in the short-wave photometric bands. ... CCD blue frames of V838 Mon before the eclipse (left) and in the eclipse (right). ...

The multiscale analysis of heterogeneous structures is actually an important and effective tool of mathematical modeling in physics, technique and biology. ... The special year will extend the existing cooperation between French and Russian researchers in the multiscale analysis and in mathematical modeling in hemodynamics, taking into consideration the mass transport, coagulation, fluid-structure interaction and other aspects. ...

... click image to view discuss) . ... This is a quick shot of the near-Earth asteroid 2005 YU55 using four consecutive exposures from the Harvard MicroObservatory robotic telescope in Amado, Arizona, on the night of Nov. ... 10, 2015 . This is Comet Lovejoy C/2014 Q2 as it appeared at about 10:30 pm Saturday, Jan. 10, 2015, from my back yard in Belmont, MA, about 5 miles west of downtown Boston. ... Main image: 0.6 second exposure. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...