... Bad Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... The length of the shadow depends on the height of an object (like a mountain or a human) and how high up the Sun is. ... We can calculate the length of the shadow if we know the Sun's angle above the horizon and the object's height. ... The Earth spins 360 degrees in 24 hours, which means it spins 1 degree in 4 minutes; that in turn means the Sun moves 1 degree every 4 minutes in the sky. ...

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• Phil Plait's Bad Astronomy: Mad Science
• Phil Plait's Bad Astronomy: Misconceptions: City Slicker

Next: Polarization efficiency: size/shape/orientation effects Up: Optical properties of cosmic Previous: The 2175? feature . To model the interstellar polarization one needs to calculate the forward-transmitted radiation for an ensemble of non-spherical aligned dust grains. ... Let non-polarized stellar radiation passes through a dusty cloud with a homogeneous magnetic field. ... The angle between the line of sight and the magnetic field is ( ). ... where the angle is connected with and ( ). ...

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• Database of Optical Properties -- Level: subpage
• Anomalous diffraction approximation (AD)
• A Nature of Polar-Ring Candidate Galaxy ZGC 2315+03

... Delta): projection d'un arc apparent entre le satellite et le corps de rИfИrence sur le parallХle cИleste et le mИridien cИleste qui passent Ю travers le corps de rИfИrence, dites coordonnИes diffИrentielles. ... Les valeurs angulaires sont indiqu es en degr s. Pour certains satellites, les l ments de l'orbite k pl rienne ne sont pas calcul s. Temps de la lumi re est egale zero. ... Les valeurs angulaires sont indiqu es en degr s. Plan- quat.lat.Terre.,lat.long.synodic du sat. ... Plan., ...

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• Description of Data
• jg0026
• jg0007

Upload Information Template for Hobbes.nmsu.edu =============================================== Archive Filename: DeScribe5_ angled _ folder _ icons _2.zip Short Description : Angled folder icons for DeScribe 5 Long Description : DeScribe 5 logo over David Graser's excellent new eCS angled folder icons release 5 folder Proposed directory for placement: /pub/multimedia/images/ icons Your ...

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• http://crydee.sai.msu.ru/ftproot/pub/comp/os/os2/hobbes/text-archives/DeScribe5_angled_folder_icons_1.txt
• Index of /ftproot/pub/comp/os/os2/hobbes/text-archives
• RELATED WORK

Crystals of Siberia Solutions for laser systems CRYSTALS of SIBERIA Ltd. ... LBO crystal, SHG Dimensions: 8 mm(W) x 8 mm(H) x 25 mm(L) Cutting angle: Theta: 90 degrees Phi: 11.6 degrees Anti-reflection Coating: DBAR@1064+532 nm both sides Quantity: 1 element Price: $2070 per element Item 2. ...

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• http://vega.inp.nsk.su/~inest/book/LS/LBO_BBO.pdf
• http://vega.inp.nsk.su/~inest/book/LS/KTP.pdf

... Next: The PROS Big Up: Software Systems Previous: Data Reduction Software . ... The srcinten task provides PROS users with a tool to compute count rates for point sources in the ROSAT High Resolution Imager (HRI). ... Corrected upper limits are cited at locations where the count rate falls below the source detection threshold. ... Srcinten is a new PROS task that computes and applies the above correction factors to the net counts in a user-specified aperture. ...

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• Generalized Spherical Harmonics for All-Sky Polarization Studies
• ASC Coordinate Transformation -- The Pixlib Library, II
• How to Piece Together Diffracted Grating Arms for AXAF Flight Data

... After all we cannot send a probe to the star Altair to confirm that it is 17 light years away. ... The "Bessel determined that the star 61 Cygni was about ten light years away" Earth goes around the Sun in one year, so in six month it is in the opposite position in its orbit. ... In 1838 Bessel determined that the star 61 Cygni had a parallax of 0.314 arcseconds and therefore the star was about ten light years away (today the distance is more precisely measured to be 11.4 light years). ...

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• Finding Your Way in the Milky Way | Astronotes

... RC0302+0454 . RC0308+0454 . ... RC0318+0456 . RC0355+0449 . Radio source parameters . ... R.A.(B1950) Dec.( B1950) Freq. ... MHz] size["] flux[mJy] 03:00:18.17 +04:43:31.3 1425.0 2.0x1.9 85 03:00:19.60 +04:43:47.3 2.3x2.0 72 R.A.(J2000) Dec.( J2000) LAS Sp. ["] index 03:02:55.33 +04:55:10.2 27.2 0.9 03:02:56.77 +04:55:26.1 --------------------------------------------- # R.A.(J2000) Dec.( ... R.A.(J2000) Dec.( J2000) R.A.(B1950) Dec.( B1950) Magn. ...

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Longitude (km) --------------------------------------------------------------------------------------------------------------------- 34 99-10 - 1 21:33:05.0 087 52 0h18 42.3 969.6 D Lit 294 -18.5 R 3.23 1.4 - 8.3 1.4 56.6677 94.2369 34 99-10 - 1 21:33:13.9 093 51 0h07 39.1 976.5 D Lit 294 -18.5 R 0.75 -3.4 - 8.3 -3.4 56.1821 94.3352 16.5 W 34 99-10 - 1 21:33:25.0 100 50 23h54 35.0 990.6 D Lit 294 -18.6 R 3.88 2.0 - 8.2 ...

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... The first column shows the kinematical diagrams, where is the angle between the line of sight on the object and the vector of rotation about Z -axis, and V S is objects line-of-sight velocity relative to an observer at rest at the position of the Sun. The straight lines are regression fits, whose slopes yield the subsystem’s rotation rate. The second column shows the relations between metallicity and distance from the Galactic plane. ... privious figure | next figure . ...

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

... Астрофорум - астрономический портал ? ... Астрономические наблюдения (Модераторы: LeMay , Александр Репной , Грудцын Алексей ) ? О визуальных наблюдениях . ... Ответ #60 : 26.08.2005 [12:11:09] ? ... Согласно последней редакции NGC для этой галактики: . B Magnitude: 12.9 . ... при визуальных наблюдениях ориентируемся на последнее число (визуальная зв. величина), при фотографических (ч/б) - на первое (зв. вел. в голубых лучах). ... Galaxy . ... NGC 7600 . ... NGC 7600 MCG -1-59- 19 . ...

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• Управление телескопом с помощью GO-TO - стр. 12 - Астрономия и компьютеры

Surface Scattering Angle Surface Point Source, Isotropic Emitter into Sphere 1 0.9 0.8 0.7 0.6 P["] 0.5 0.4 0.3 0.2 0.1 0 0 !/4 !/2 Scattering " 3!/4 ! MC: local line center resonant MC: local HG scattering, g=0.0 Analytic HG, g=-1/3

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• http://hea.iki.rssi.ru/Z-90/arc/24/derishev.pdf
• http://hea.iki.rssi.ru/integral06/papers/I32_Kalemci01-14Feb07_17:25:59_color.pdf
• http://hea.iki.rssi.ru/integral06/papers/I32_Kalemci01-13Feb07_15:37:29_bandw.pdf

... Comet Holmes . 15 Seperate Days of Comet Holmes durning the month of November. from 11-11-07 thru 12-04-07 The Bright Moon and Clouds were a problem on a few of the frames, the Bright Star is Mirfak that the Comet Passes during this animation, also take notice to the angle movement on the tail preforming a clockwise rotation . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... Cooling and thermal control system (CTCS):an angle between normal of thermal radiator plane (Z-axis) and vector "SC-Sun" must exceed 90 deg.. ... The axes of the first two sensors are in the plane YOZ; they have an angle of 35 degrees with Y and -Y axis being inclined to the direction of -Z axis. ... 30 degrees for Sun; . ... An angle between +Z-axis and direction to the Sun center must exceed 90 degrees. ... An angle between direction "SA-Sun(center)" and XOZ plane must not exceed 30 degrees. ...

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• Texas Survey of radio sources at 365MHz

... Telescopes . ... The spectrograph is installed in the Nasmyth focus of the BTA telescope, the equivalent focal length is 186 m (F/31). ... The preslit device unit is marked by number 3. ... Fig. ... slit unit of the MSS, 4.1 ? ... The spectrograph slit unit consists of a mirror that redirects the light beam from the Z axis and from the calibration path at an angle of 65њ to the axis of the telescope focus into the slit, the order separation filter, the block of the slit and the shutter (Item 4 in...

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• Facility scientific results 2003

... Астрофотография (Модераторы: LifeIsGood , MaxMan ) > . C/2009 P1 и другие кометы . ... 08 Июнь 2011, 22:18:47 ? ... Perihelion distance 1.5505340 AU . ... Inclination of orbit 106.1777000 degrees . Argument of perihelion 90.7453000 degrees . ... Date of perihelion JD 2455919.16800 (23 Dec 2011 16:01:55) . Right ascension: 22h59m39.520s . Declination: -02 40' 04.34" . Mean position at current epoch: . Right ascension: 23h00m14.863s . ... Right ascension: 23h00m15.962s . ...

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• MaximDL+Tycho-2 for PinPoint Astrometry - Астрософт

... 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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... 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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Электронная библиотека астронома-любителя. ... архив RSN . ... Апрель 1998 . ... Дата: 10 апреля 1998 (1998-04-10) От: Alexander Bondugin Тема: Galileo Update - April 9, 1998 Привет всем! ... Дата: 10 апреля 1998 (1998-04-10) От: Alexander Bondugin Тема: Mars Global Surveyor Update - April 9, 1998 Привет всем! ... The feature known as the "Face on Mars" in the Cydonia region was imaged quite successfully on April 5th and its image was released in raw form and in an enhanced form on April 6th. ...

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• Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 05 ноября
• Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 16 апреля
• Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 11 февраля

... The antenna system . ... A military radar system, consisting of two identical radars, was transferred to the Institute of Solar-Terrestrial Physics (ISTP). ... The system features a two-channel transmit-receive antenna. ... By changing the phase difference in the channels, one is able to modify the shape of the total channels' beam in the angle-of-elevation plane. ... The total beam is controlled by introducing the phase signal into the excitation signal of one of the channels. ... Peak power.. ...

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