Definitions of Magnitudes and Surface Brightness 1 The magnitude system 1.1 Apparent magnitude Astronomers are stuck with the antiquated old system of magnitudes and so a clear explanation of what this system is and how it relates to more sensible units is important. ... 1.2 Absolute magnitude Absolute magnitude is a logarithmic luminosity scale. ... One usually goes by the round about process of referring to the absolute magnitude of the sun. ... Magnitudes and surface brightness 6/6 ...

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• http://www.mso.anu.edu.au/~geoff/AGD/Cartesian_Tensors.pdf
• http://www.mso.anu.edu.au/~geoff/HEA/A1_Tensors.pdf
• http://www.mso.anu.edu.au/~brian/A3002/grtinypdf.pdf

... On-line Data . ... The program enables to find out the exact present Earth coordinates of the international space station and "Shuttle". ... J-Track - this program is similar to the previous one, however it knows how to display images and orbits of space vehicles. ... NASA SkyWatch - a program for those, who are fond of watching artificial space objects through the telescope, field - glass or with the unaided eye. ... Info: Industry news On-line Data Company ATLAS news Events We in press Contact . ...

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... Tte tables of ionosphere and plasmasphere parameters are contained in a file param.tbl. ... Latitude Longitude Numbers of tables for (degree) (degree) Month Wm=10 Wm=100 Wm= 150 80 30 March 1 - 3 397-399 793-795 80 150 March 4 - 6 400-402 796-798 80 270 March 7 - 9 403-405 799-801 60 30 March 10 - 12 406-408 802-804 60 150 March 13 - 15 409-411 805-807 60 270 March 16 - 18 412-414 808-810 40 30 March 19 - 21 415-417 811-813 40 150 March 22 - 24 418-420 814-816 40 270 ...

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• http://www.wdcb.ru/stp/data/sudden.com/storm_rev.txt

... Galaxies with polar rings (PRGs) are a unique class of extragalactic objects, consisting of a ring or disk of gas, stars and dust orbiting in a plane nearly perpendicular to the disk of a central galaxy. ... At present, there are only about two dozen kinematically confirmed galaxies in this PRG class, mostly from the Whitmore et al. (1990) catalogue, based on photographic images. ... Examples of object from our catalogue SPRC (=SDSS-based Polar Ring Catalogue). ...

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• Electronic version of Russian Bulletin

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 . ...

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... IMAGEH = 2592 / Image height, in pixels. ... HISTORY For more details, see http://astrometry.net . ... COMMENT -- blind solver parameters: -- COMMENT Index (0): / usr / local / astrometry / data / index -4018.fits COMMENT Index (1): / usr / local / astrometry / data / index -4017.fits COMMENT Index (2): / usr / local / astrometry / data / index -4016.fits COMMENT Index (3): / usr / local / astrometry / data / index -4015.fits COMMENT ...

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• http://www.astro.louisville.edu/shared_skies/archive/select/dwarf_planets/pluto/20120530/astrometry/pluto_R_20120530_00149dfw.wcs
• http://www.astro.louisville.edu/shared_skies/archive/select/stars/pegasus/enif/20101007/nikon_1286507318_enif.wcs
• API Help (ImageJ API)

... StarCalc Home Page - Downloads . ... File . StarCalc (English version) . ... With minimal configuration, version 5.72 of StarCalc includes the next interfaces: "Horizon", "Horizontal coordinategrid", "Equatorial coordinate grid", "Constellation boundaries", "Constellation lines", "Constellation names", "Star proper names", "Bright Star Catalog", "Deep-sky objects", "Sun", "Moon" and "Planets and satellites" . Plugins for StarCalc . ... Interface to NGC 2000 (plugin + catalog file) . ...

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... Equinox of object coordinates BJ = 18.87 / bJ magnitude UMBJ = -0.69 / u - bJ colour BJMR = 0.22 / bJ - r colour NOBS = 1 / Number of 2dF observations available IS_ BEST = 'TRUE ' / TRUE if this file contains the best 2dF observa DATEBEST= '24/09/00' / Date of best 2dF observation (DD/MM/YY) ID_ BEST = 'QSO ' / ID from best 2dF observation QUALBEST= 11 / Data quality flag from best 2dF observation Z_ ...

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... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... Prime Contractor is S.P. Korolev Rocket Space Corporation Energia. ... extend the functional capabilities of the vehicle with regard to the onboard system control from the onboard computers of GN and provide deeper integration with the onboard computers of the International Space Station Russian Segment (ISS RS) when using a multiplex exchange channel; . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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• DEVELOPMENT OF THE COMPANY'S STRUCTURE - S.P.Korolev RSC Energia
• INTERNATIONAL SPACE STATION

Coordinate Systems used for spacecraft trajectory description: . ... The HGI coordinates are Sun centered and inertially fixed with respect to an X-axis directed along the intersection line of the ecliptic and solar equatorial planes. ... Cometocentric (solar) Ecliptic Coordinate System (CSE) . ... CSE coordinate system for the SC POSITION: axis origin at comet center, X-axis to the SUN, Z-axis to ecliptic north pole, (X,Y)-plane is parallel to the ecliptic plane. ...

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• IZMIRAN: Laboratory for Physics and modeling of the ionosphere - publications -

... Configuration The dictionary accepts one obligatory parameter - RULES, which has to be set to the file describing parsing rules and output recipes. ... Each non-empty line is either a comment (when started with '#' symbol), or a conversion rule, and in the latter case has to contain whitespace-separated pattern and output recipe. Currently, pattern has to match the _integer_ (one, two or more) number of input tokens; they will be replaced with a single one. ...

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• SAI CAS: Cross-catalogue match interface
• SAI Web Services - WCSfix
• people:olegbartunov [SAI Virtual Observatory - Wiki]

This page will contain definitions (and basic references) of the following parameters: . cross-sections C ext , C sca , C abs , C bk ; . efficiencies Q ext , Q sca , Q abs , Q bk ; . ... TE/TM mode definitions for arbitrary shapes. Note that some parameters are defined in a quite different (specific) manner than for spherical scatterers, and some definitions in the book of Mishchenko et al. ...

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• Database of Optical Properties -- Level: database
• Special Practice in MIDAS
• Polarization efficiency: size/shape/orientation effects

... The VSOP Survey Continuum Source List . The radio sample for the VSOP continuum survey was defined to include all extragalactic radio sources with: . a total flux density at 5 GHz, S>=1.0 Jy . ... The sample also included all sources in the sky with a 5 GHz flux density S>5 Jy, regardless of spectral index and galactic latitude. ... The source would then be included in the VSOP sample (three of the sources were found with a flux density above 1 Jy and added to the sample). ...

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... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

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Клуб Скептиков] [Конференция] . ... Хеймдалль : re: Насчет материализма . ... Юрий Тихонравов Скептицизм и атеизм Alex re: Скептицизм и атеизм 23-Июн (10:02) Юрий Тихонравов re: Скептицизм и атеизм 23-Июн (10:20) Alex re: Скептицизм и атеизм 23-Июн (10:40) Юрий Тихонравов re: Скептицизм и атеизм 23-Июн (11:02) Alex re: Скептицизм и атеизм 23-Июн (12:06) Юрий Тихонравов re: Скептицизм и атеизм (+) 23-Июн (13:02) Alex re: Скептицизм и ...

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. N OTE: . Only clusters with R<60 kpc were used to compute the spatial parameters and metallicity gradients for all subsystems except the corona. The numbers in parantheses give the number of clusters for which the corresponding parameter is known. The X O scale length of the old halo is strongly distorted by the observed asymmetry of the distribution of the corresponding clusters projected onto the XY plane ( Fig. 4А ) . discussion in the text | previous table .

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• Population of Galactic globular clusters, figures
• Vladimir Marsakov Abstracts
• Doclad, figures

... Radio astronomical tests of the engineering model of the space radio telescope (SRT) were completed in Pushchino - see Results . ... Monitoring of the development of the upgrade on-board 1.35-cm receiver (R-SRT-1.35 cm): . ... EM Engineering Model . ... OHCFS-SRT Space Radio Telescope On-board Heterodyne and Clock Frequency Synthesizer set . OHFS-SRT Space Radio Telescope On-board Hydrogen Frequency Standard . ORFS-SRT Space Radio Telescope On-board Rubidium Frequency Standard . ...

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• Moscow division at ASC Home Page
• Texas Survey of radio sources at 365MHz
• GOCG Pre-Observation Products

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...

59. Stellar Astronomy

60. Heracles