... On the equator (point C) the sun would always rise until it was overhead, while at the poles (A and B) it would always be on the horizon, going around the horizon once a day. ... Because everything is symmetric with respect to the line AB, the dark and light portions are always equal, and so are day and night, anywhere on Earth. ... Twice a year, the angle is as big as it can get, at the summer and winter solstices , when it reaches 23.5 degrees. ... That part of Earth enjoys summer . ...

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This section of AMPLE enables one to make ephemeris calculations in various coordinate systems (spherical, rectangular) connected with different main planes (equator, ecliptic, horizon) and having origin in different points: geocenter, any point on the Earth surface, the Sun, any major planet, any minor planet. The choice of some minor planet as a center gives possibility to find approaches of the minor planet with any set of major planets and minor planets. ... equinox . 1950 2000 true . ...

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... La Section #1 Des observateurs aux explorateurs de l' espace d crivait comment on observait le d placement du soleil dans le ciel, au cours des diff rentes saisons. ... Si l'axe de la terre tait perpendiculaire l' cliptique, comme ci dessous, la position du soleil dans le ciel serait mi-chemin des p les c lestes, et son trajet quotidien resterait exactement le m me, jour apr s jour, pour n'importe quel point de la terre. ... Dans cette moiti de la terre, c'est l'hiver. ... Et la distance au soleil? ...

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• Seasons of the Year
• More on Kepler's Second Law
• The F1 format

... Sun's ecliptical positions. Explanations. Each row contains at 0h of Time Dynamical Terrestrial: month, day , day of the week, julian day number at beginning of day (only last three digits is given, add head of column to form correct number ), longitude in system of mean equinox of date (degrees, minutes, seconds ), two latitudes (the first for mean equinox of date and the second for mean epoch of year; seconds ), radius-vector (astron. units), precession in ...

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• Precession/nutation matrix. Explanations for Computer Ephemeris.
• Lunar orbital data. Explanations for Computer Ephemeris.

This WWW form allows the user simplified access to images produced by the NRAO/VLA Sky Survey (NVSS). This service determines which NVSS image is desired based on a celestial position and returns either the image directly or a Web page with a link to the file. ... The NVSS Postage stamp (small FITS file) server can be used to obtain images with other geometries.) ... Web browsers use external viewers to display files like FITS images which they do not understand. ...

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• VLSS Image ftp service Documentation Help for VLSS Image ftp service
• VLSS Postage Stamp Server Documentation Help for VLSS Postage Stamp Server
• _target struct Reference

... Classes . ... TelescopeClientDirectLx200 Class Reference . ... TelescopeClientDirectLx200 (const QString &name, const QString &parameters, Equinox eq=EquinoxJ2000) . ... isConnected (void) const . ... getInfoString (const StelCore *core, const InfoStringGroup &flags) const . ... getEquinoxEquatorialPos (const StelCore *core) const . ... getJ2000GalacticPos (const StelCore *core) const . ... getSideralPosGeometric (const StelCore *core) const . ... getSideralPosApparent (const StelCore *core) const ....

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• Stellarium: TelescopeClientDirectNexStar Class Reference
• Stellarium: BigStarCatalogExtension::StarWrapper< Star > Class Template
• Stellarium: Exoplanet Class Reference

... Our wonderful group . ... From Stars - to galaxies . ... Our group. ... Birthday party. ... Our scientific group. ... New Year party - 1997 (New Year were made by my younger brother Vasilii, who is so modest, that doesn't appear on this images:) ) . ... My birthday - 1997. ... New Year party - 1997. ... Andrew's birthday. ... Talk at Physics of Neutron stars at ST. Petersburg. ...

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From XEphem running the Soft03Cmt database of 20121002, for the date and time of the observation: RA: 08:16:04.25 Dec: 27:48:13 2012-09-30 UT 09:45 UTC Measured: RA: 08:16:04.4 Dec: 27:48:12.9 Header listing for HDU #1: SIMPLE = T / This is a FITS file BITPIX = -32 / NAXIS = 2 / NAXIS1 = 4341 / NUMBER OF ELEMENTS ALONG THIS AXIS NAXIS2 = 4355 / NUMBER OF ELEMENTS ALONG THIS AXIS EXTEND = T / This file may contain ...

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• http://www.astro.louisville.edu/shared_skies/archive/select/comets/lovejoy/20150107/lovejoy_nikon_f2p8_10s_20150107.wcs
• 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/messier/m4/20070402/modhead_image_m4

. Equinox - a moment of the Sun's centre passing through the celestial equator in its visible moving along the celestial sphere. The equinox occurs on the 20-21 of March (vernal) and on the 23d of September (autumnal). This time the day and the night duration is equal. Back .

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• sozvezdiae
• starstimee
• yeare

... The catalog contains SAO number; the right ascension and declination with a B1950.0 equinox and epoch; annual proper motion and its standard deviation, photographic and visual magnitudes; spectral type; references to sources; the Durchmusterung (DM) identifier if the star is listed in the Bonner DM (BD), Cordoba DM (CD), or Cape Photographic DM (CP); component identification; The Henry Draper (Extension) (HD or HDE) number; and J2000 positions and proper motions. ...

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• Positions and Proper Motions - South
• Positions and Proper Motions

... Keywords EQUINOX , RADECSYS , REFXCTYP , REFXCRPX , REFXCRVL , REFXCDLT , REFXLMIN , REFXLMAX , REFXDMIN , REFXDMAX , REFXCUNI , REFYCTYP , REFYCRPX , REFYCRVL , REFYCDLT , REFYLMIN , REFYLMAX , REFYDMIN , REFYDMAX , REFYCUNI , (and if applicable RA_PNT , DEC_PNT , PA_PNT and AVRG_PNT ) are added to the primary header. Keywords EQUINOX , RADECSYS , REFPOINT , RAREF , DECREF , ATTSRC , and if applicable ( attsrc =FIXED), ATTRA , ATTDEC and ATTPA added to events header. ...

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• Input Files
• Index

... E.V. Kazarovets, N.N . Samus , O.V. Durlevich, S.V. Antipin, M.S. Frolov, N.N . Kireeva, E.N. Pastukhova Institute of Astronomy of Russian Academy of Sciences and Sternberg State Astronomical Institute of ... the Moscow State University ================================================================================ The 74th Special Name-list of Variable Stars , A.V. Kazarovets, N.N . Samus , O.V. Durlevich, S.V. Antipin, M.S.,Frolov, ... 3323 Samus, N.N., IBVS, 1997, No. ...

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• Absolute proper motions of open clusters

Text of these problems is available also in other languages : . ... What can one see in the Moon's sky more often - the Sun or the Earth? ... There are about of 250 millions of stars in the elliptical galaxy M32 (a satellite of Andromeda galaxy). ... The masses of Capella's components. ... You are proposed to estimate the masses of Capella's components, using our observational data. ... A galaxy's mass. ... Estimate the mass of FGC 1908 and compare it to the mass of our galaxy. ...

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Le Menu pour la SoirИe TИlИ Vie du 19 Avril 2002 Au prix de 35 La Mise en Orbite Aurore BorИale de Magret de Canard FumИ Et sa Constellation d'Asperges Sauce Mousseline °°°°° La CТtelette de Saumon Cuit au Four sur Galaxie PotagХre Sauce Ю l'Herbe SacrИe Le Tout Recouvert de sa NИbuleuse Croustillante Pilaff de CИrИale °°°°° Entracte Galactique RafraНchissant °°°°° Jupiter de Veau Sauce aux Echalotes Confites Et Nectar de Bourgogne ...

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Obs file (./ ... TEMPERATURE 5.0 WLIMIT 3500.0 7500.0 Wavelength 6749.28 MUSTHAVE -4.00 PDECIDE -3.00 TELESCOPE Magellan INSTRUMENT IMACS_sc DISPERSER IMACS_grism_300 SLITSIZE 1.000 6.000 6.000 0.000 REFHOLE 5.803 1 2.901 2.901 0.000 EXORDER 0 REPOBJ 0 # Object file list OBJFILE N32_A_o.obw OBJFILE align_N32_B.imacs # Following items are obsolete use INSTNAME IMACS-short GRATING IMACS_grism_300 ...

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• RXJ03233-4931

... Stars . ... By admin March 2, 2012 Posted in: March . ... On a clear night these beautiful, bright stars of the Winter Circle are a joy to behold. ... Moving clockwise the next member of the circle is the brightest star in the night sky, Sirius, the Dog Star, shining at magnitude -1.4 in Canis Major. ... The constellation of Gemini provides two of the stars to the circle.€а The twinsтАЩ heads, Castor and Pollux which at magnitude 1.1 is the 17th brightest in the sky and dimmest in the circle . ...

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• Hubble sees Saturn in a new light | Astronotes
• The March 2016 Night sky | Astronotes
• The September 2015 Night Sky | Astronotes

... For AG zones, the ZZ field contains the lowest declination zone in the appropriate catalog (50 or 55) Byte 17: BD supplement letter Byte 18: DM component identification 19- 20 I2 h RAh Hours RA, equinox B1900 , epoch 1900.0 21- 23 I3 0.1min RAdm Deci-Minutes RA, equinox B1900 , epoch 1900.0 24 A1 --- DE- Sign Dec, equinox B1900 , epoch 1900.0 25- 26 I2 deg DEd Degrees Dec, equinox B1900 , epoch ...

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... 1.4 OSGi Java. ... Solver, package sample; import org.slavery.basic.Solver; import org.xdp.commons.SessionID; import org.xdp.commons.URI; public class SampleSolver extends Solver { public SampleSolver(SessionID sid, String name) { super(sid, name); } @Override public void perform() { double d = (Double) storage.load( new URI(getName() + "/initdata"), getSessionID()); double r = Math.sin(d); storage.save(new URI(getName() + "/resdata"), r, getSessionID()); } 41 } load() storage, Solver. , save(). , ,...

39. nssdcftp

40. http://www.gao.spb.ru/english/as/j2014/presentations/capitaine.pdf