... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

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• Add your Opinion, Comments, Questions, New Problems,...
• Database of Optical Properties -- Level: subpage

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy
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Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . Webb Society Deep Sky Observer Handbook_V_1_Double_stars . ... Поиск . ... Webb Society Deep-Sky Observer's Handbook by Kenneth Glyn Jones . ... Sky-Watcher Доб 254 моторетрак, MAK 90, Coronado SM 40; бинокль Canon 10x30 IS . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. ... Webb Society Deep-Sky Observer's Handbook, Vol. ... Webb Society Deep-Sky Observer's Handbook vol 4 . ...

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Обзоры hep-ph: тематический рубрикатор . ... Theoretical Issues in b Physics) . Authors: Jonathan L. Rosner . Comment: 18 pages, LaTeX, 4 figures, invited talk presented at LHC 2003 Symposium, Fermilab, May 1-3, 2003. Краткий обзор всех основных вопросов, связанных с физикой B-мезонов. ... Comments: 10 pages, LaTeX, 1 figure, ps file included . ... Comments: LaTeX, 173 pages, 38 figures, to appear in Physics Reports (Habilitation Thesis, Hamburg Univ., ... Comments: 22 pages, 3 figures . ...

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... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

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Contents. planet: 5 - Jupiter satellites: J17 - Callirrhoe : 8, total number: 8 type: absolute dates: 2010-2010 observatory: C51 - WISE (satellite) Reference. ... Informations. relative to: absolute reference frame: astrometric centre of frame: topocentre epoch of equinox: J2000 time scale: UTC reduction: no information coordinates: absolute diff. refraction: no information receptor: CCD telescope: WISE (satellite) observers: data included in standard data file: no Comments. ...

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• jo0051
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... Status . ... Roof State . CLOSED . 2457488.173634 . 0D:3H:27M:34S . Roof closed at 2016.04.09 16:10:02 . Roof Position . ... Weather State . ... 0D:21H:8M:0S . ... Roof Control (Software) . ... 2457458.425995 . 29D:21H:24M:9S . ... Roof Control (Hardware) . ... Roof UPS State . ... GPS State . Engineering Page Winer Graphical Data Server Page(s) . Time of Last Reboot: 29 Days, 21h:26m:00s . ...

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. Эмблема полета специалистов-океанологов от ВМС США.

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Observation data to which modern planetary ephemerides can be adjusted . Date is time of signal emission!, as contrasted to American radar ranging . where date is time of signal reception. Frequensy is 769.42875 MHz 1962-1986 . ... Coordinates of stations in Eupatoria, Crimea . ... station 8 . ... Observational Data to which DE/LE ephemerides are adjusted http://ssd.jpl.nasa.gov/?eph_data . This page is supplied by Elena Pitjeva; please send commentaries to: evp@quasar.ipa.nw.ru . ...

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• (Untitled)

... 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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... 8 February , 2014 SAI seminar (Ryde et al 2010) 5 Thermal emission from GRB jet progenitor observer photon jet Photosphere (=1) · · · · Photons are not produced at the photosphere We have to calculate radiative transfer We need to know where the photons are produced We construct the expression for effective optical depth in relativistic flow considering random walk process in relativistic flow SAI seminar 6 8 ... 8 February, 2014 SAI seminar 28 ...

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... Comet Images . ... Comet Hale-Bopp Home Page . ... JPL's Comet Hale-Bopp Home Page . ... Планируемые и прошлые миссии к кометам: . New Millenium Deep Space-1 Миссия НАСА к астероиду ?3352 Мак Олиф и периодической комете Веста-Когоутека-Икемуры (1998); . Stardust - Миссия НАСА по проекту "Дискавери (открытие)" к комете Вилд2 (1999) или еще один сайт . ... ICE (ISEE-3) - Миссия НАСА по исслед. кометы Джакобини-Циннера . Sakigake - Япония, изучение кометы Галлея (и Джакобини-Циннера в1998) . ...

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We present a catalogue of galaxies for which spatially resolved data on their internal kinematics have been published; there is no apriori restriction regarding their morphological type. The catalogue lists the references to the articles where the data are published, as well as a coded description of these data: observed emission (E) or absorption (A) data, optical (O) or radio (R) data, velocity (V) or velocity dispersion (D), radial profile (1) or 2D field (2). ...

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The small solids. Asteroids or the small planetes . ... The comets. ... Ceneca the Young.Procuring about the nature.63 y. The comet is a celestial body of a great size, but a rare one... transparent. Sometimes there seen a core and the medium forms a kind of a tail, beard or dishevelled looks. ... The core is an ice body - conglomeration of frosted gas and dust. ... The comet state is variable: ones have the con tails, others the dust tails, and the third have both. ... Meteors and meteorites. ...

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• gershele
• antichnoste
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Irregular phenomena in the Earth Pole oscillation process and temporal variations of geopotential Valery Bondarenko, Vadim Perepelkin s The observed irregular phenomena in the Earth Pole oscillation process are very variety. ... These phenomena indicated in the IERS data are the "abnormal" fluctuation of the Earth Pole coordinates which owing to changing of the geodynamical parameters gives negative result in interpolation and forecast of the first approximation mathematical model. ... Fig. ...

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. Moscow Astronomical Plate Archives: Contents, Digitization, Current and Possible Applications. Light Curves of New Variable Stars Discovered on Scans of Moscow Collection Plates, Field 66 Oph (MDV). MDV catalog - CDS access. Moscow plate collection (Sternberg Astronomical Institute), S.Yu. Shugarov's interactive page. Send questions and comments to N. Samus and S. Antipin .

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... ACQMODE Acquisition mode AIRMASS Air mass for current object observation BIASSEC OVERSCAN AREA BITPIX Number of bits per data pixel BSCALE Default scaling factor: REAL = TAPE*BSCALE + BZERO BZERO Offset data range to that of unsigned short CALIB Calibration CCD-TEMP CCD temperature at start of exposure in C COMMENT Comment text DATATYPE Data type DATE File creation date (YYYY-MM-DDThh:mm:ss UTC) DATE-OBS YYYY-MM-DD observation start date, UT DEC OBJECT DEC, deg:arcmin ...

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... 20 , , CAD/CAM/CAE Observer #7 (67) / 2011 "PLM " 1953 . ... CAD/CAM/CAE Observer #7 (67) / 2011 PDM , . ... CAD/CAE/CAM , Unigraphics, CADDS5, Pro/ENGINEER SolidWorks. ... CAD/CAM/CAE Observer #7 (67) / 2011 .4 Pro/ENGINEER, (. ... CAD/CAM ADEM Pro/ENGINEER . ... CAD/CAM/CAE Observer #7 (67) / 2011 .13 22 ­ Windchill Pro|TECHNOLOGIES. ... CAD/CAM/CAE Observer #7 (67) / 2011 : · PLM (Windchill+Pro/ENGINEER); · Pro/ENGINEER; · Pro/E (3D + ); · () Windchill; · Windchill; · Pro/ENGINEER; · ; · , 8 . ...

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... Advises . Contact Advises . As an advise for amateurs we would like to underline: if it's possible, try to observe 3 asteroid positions per night and do not neglect to observe the Numbered Minor Planets in your telescope field of view as a "by product" of your observational programs. ... We think such estimations ought to be produced every morning after CCD observations of the moving celestial objects by observer himself. ...

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... Precisely one month ago, on 11 July 2009, the last active area of the new solar cycle disappeared from the surface of the Sun. Over the 30 days following this, neither observers on Earth nor devices in space have been able to detect the emergence of any sunspots. ... Therefore, it seems that our star has once again returned to a state of deep solar "winter", following several sparks of activity in May-June 2009. ... To date, this period has lasted 30 days. ...

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• The Russian TESIS Observatory will observe two solar eclipses from space