In the scalar Helmholtz equation the variables are separated in 11 physically interesting coordinate systems [ 55 ], however for the vector field containing 3 scalar functions, the complete separation of variables is possible only in 6 systems: Cartesian, 3 cylindrical, conical and spherical ones ([ 55 ], Ch.13). Therefore, the formal solution suggested in 1927 by F. Moeglich [ 368 ] for the spheroidal coordinates was practically usefulness until the work of Sh. ...

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• T-matrix method (EBCM)
• Point matching method

Field centres for 6dF/FLAIR observations of the 6QZ survey. # 6dF fields have radius 2.844 deg. and were defined in the # J2000 system. FLAIR fields are square and are 5x5 deg # centred on UKST survey positions and defined in the B1950 # system. # 6dF : coordinates ( B1950 ) coordinates ( J2000 ) # Field hh mm ss.ss dd mm ss.s hh mm ss.ss dd mm ss.s sgp001 21 51 31.25 -30 11 45.4 21 54 25.40 -29 57 33.0 sgp002 22 10 08.35 -29 50 17.3 22 12 59.50 -29 35 25.0 sgp003 22 30 24.34 ...

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... ISC Kosmotras . ... Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. ... Dnepr Launch Manifest for 2016-2017: . 1 st half of 2016: Dedicated launch of a group of satellites . 2 nd half of 2016: Cluster launch of a group of satellites . 1 st half of 2017: Cluster launch of a group of satellites . ... 2 nd half of 2017 - 1 st half of 2018: Dedicated launch of a group of satellites . ... E-mail: info@kosmotras.ru . ...

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. Astro Space Center . (Moscow Division) . Theoretical Astrophysics . QUAD : Quantum Astrophysics . Space Radio Astronomy . SED : Space Electronic . SCD : Space Constructions . ASMGSD : AstroSpace Missions Ground Support . RT-70 : Designe & Coordination RT-70 . DPD : Data Processing . INS_Lab : Information & Navigation Systems

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• Description of the RadioAstron project, english version
• Parameters of the Moon-perturbed orbit
• Moscow departments and labs

J2000.0 coordinates -- source coordinates in J2000.0 epoch: right ascension and declination. Currently, the proper motion is assumed to be zero for all sources.

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• Laboratory

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... When we designed the exhibit, we wanted the zodiacal constellations to be indicated. However, whereas the Orrery is laid out in the ecliptic plane, constellations are defined in B1875 equatorial coordinates. Therefore for each adjacent pair of zodiacal constellations, we calculated the point at which the J2000 ecliptic intersects the boundary between the two constellations. ... numbers . plot . image . ...

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• Species to be Planted
• Observing times | International Year of Astronomy in Ireland | Astronomy 2009
• Phenology

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

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• SAI OCL Catalog Description

Prague, August 16, 2006 . Another problem that was making it difficult to automatically merge GCVS and survey catalogs has been recently solved: 'old' variable stars also had only very rough coordinates. The GCVS has been identified, on a star-by-star basis, with positional catalogs. ... The total number of stars we were unable to identify, at least tentatively, is only 200, most of them from two or three sources of especially unreliable positional information. ...

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• GENERAL CATALOGUE OF VARIABLE STARS
• General Catalogue of Variable Stars: Homepage.
• GCVS Research Group: Recent publications

System of astrometric databases of Pulkovo observatory. ... The purpose of these observations is the determination of precise coordinates of Solar system bodies, which is necessary for development and improvement of motion theories, and for studying the evolution of the Solar system. ... Accuracy of photographical observations is about 0.2-0.3 arcsec for equatorial coordinates and 0.1-0.3 for relative coordinates of planetary satellites, depending on object and observational conditions. ...

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• Pulkovo Astrometrical Plate Database
• page_17

... Milky Way . ... Map of the Milky Way (based on data from NASA's Spitzer Space Telescope) showing its two major stellar arms and central bar. ... ТљIn written science fiction, one often encounters another navigational convention, where towards the Galactic Centre is described as т??Corewardт??, away from the Centre towards the rim of the Milky Way is т??Rimwardт??, objects in the direction of the Galaxyт??s rotation are т??Spinwardт??, while objects in the opposite direction are т??antispinwardт?? ...

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... 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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MORPHOLOGICAL CATALOGUE OF THE CRATERS OF THE MOON . ... Coordinates, diameters and morphological features of 14 923 craters of the Moon in diameters 10 km and more are available in the catalogue. ... A lunar morphological crater catalogue was compiled by the Sternberg State Astronomical Institute in collaboration with the Unified institute of Nuclear Research, Dubna. ... 4. the presence of central peaks, ridges and mountains on the floor . ... peak and many mountains . ... many peaks, 1 mountain . ...

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• Zhanna F. Rodionova
• Morphological Catalogue Of The Craters Of Mars

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Project History . ISS Russian Segment . Steps of ISS Assembly . ... ISS 45/46 . ... Rocket Space Complexes . ... Generating input data for developing a flight onboard system for immediate determination of puncture coordinates under the ISS full-scale flight conditions. ... HISTORY . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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• S.P.Korolev RSC Energia - LAND LAUNCH SYSTEM
• S.P.Korolev RSC Energia - MIR ORBITAL COMPLEX
• INTERNATIONAL SPACE STATION

... Sun images . ... Sun flares . ... Active areas . September : 2009 . ... No sunspots and sunspot groups can be currently observed on the Sun's surface . The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates . ... Coordinates and other characteristics of active regions are issued for September 09, 2009 00:31 UT . Last updated: September 10, 2009 00:00 UT . ... 7(499)132-65-96, Fax: +7(499)132-65-97 . ...

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• Sunspots and active regions January 14, 2006
• Sunspots and active regions January 15, 2009
• Sunspots and active regions January 11, 2008

... My mother had a 'star named for me' with the International Star Registry (henceforth ISR) as a gift for this Christmas. ... On the back of the chart, a sticker described the precise location and visual magnitude of the star, taken from the Hubble Guide Star Catalog. The first thing I noticed, was the chart was Epoch 1950. ... The coordinates were also exactly those on the ISR sticker, so I now knew that even though the ISR chart was epoch 1950, the coordinates on the sticker were epoch 1983. ...

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ABSOLUTE PROPER MOTIONS OF 331 OPEN CLUSTERS . ... The proper motions of stars in the fields of 331 open clusters were taken from Four-Million Star Catalog (4M-catalog) of positions and proper motions (Volchkov et al. ... The absolute proper motions for 21 young open clusters have been derived by comparison of precise relative proper motions of individual stars and their corresponding absolute proper motions. ... Sign of proper motions in RA . ... 0.0001 arcsec/yr . ... rms error in RA proper motion . ...

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• The Catalogue of Interacting Galaxies by Vorontsov-Velyaminov

... The observed distributions of stars of different ages and metallisities in the Z coordinate relative to Sun: (a) young ( t 3 Gyr) metall-rich ( [Fe/H] -0.13 ) stars; (b) young metal-poor ( [Fe/H]<-0.13 ) stars; (c) old ( 3 Gyr) metal-rich stars, and (d) old metal-poor stars. ... next figure | previous figure . ...

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• POWER SPECTRUM OF THE IRREGULARITIES AND IT'S FIXING
• Scientific Directions Achievements

. Search Object . By Name . Name . By Coordinates . R.A.(hhmmss.s) . (J2000.0) . Decl.(+/-ddmmss) . (J2000.0) . Search Radius(arcmin) .

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• Radio telescope short description
• Technicality RATAN-600
• Hardware sector, archive 2009

... Space flight . ... Baikonur . ... Space camp . Space Hotel . ... On May 5, 1957 acceptance act of the first launch complex was signed, and as early as on May 6, 1957 the first "R-7" missile was erected on the site. The cosmodrome consists of nine launch complexes with fourteen launchers, thirty-four engineering complexes, three fuelling stations for space vehicles and two aerodromes. ... Services / Baikonur: General description Technical description Shedule of launches Photo gallery Price . ...

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RSSI Network Operation Centre (NOC) provides 24 hours a day, 7 days a week monitoring and maintaining of all RSSI network components (including routers, leased lines to sites, interconnection links, dialup service, telecommunication equipment and etc.) from Network Operation Centre Interconnect Facility at Space Research Institute RAS in Moscow. ... NASA Internet NOC to isolate and resolve circuit, routing hardware and/or software failures; . ... NMS alarms and monitoring tools . ... User Support . ...

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• RSSI Management.