... 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. ...

ATM Forum Message . ... 9 Point Cell . ... You really don't need a 9 point cell for the mirror unless the last of the dobs used a much thinner piece of glass for the mirror. A regular 3 point cell will work just fine and will be distorting the glass a lot less than the probable errors in the mirror surface are by a huge margin. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Telescopes . ... The LX850 combines innovative concepts like StarlockтДв fulltime automatic guiding and high-precision pointing, f/8 ACF OTAs with internal Crayford-style two-speed focuser and a portable precision German equatorial mount. ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade Green Laser Pointer- a great item for star parties and backyard astronomy. ...

... Ballistics, navigation and flight control of the spacecraft, going to the L2 point of Sun-Earth system. ... and calculation algorithms have been developed: - an algorithm, building nominal trajectories for one impulse flights to the L2 point of Sun- Earth system, including a Moon swingby maneuver or not. - an algorithm, calculating corrections of spacecraft trajectory needed for the flight from Earth to halo orbit and for stationkeeping of the spacecraft moving in halo ...

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. Computer Ephemeris. Lunar eclipse numerical map. Explanations. First portion of the page contains coordinates of sub-lunar points during the eclipse. Every point is represented with two numbers: geodetic longitude and geodetic latitude, both in degrees. Second portion of the page contains coordinates of the points at terminator line for the moments of contacts. There are 360 points on the lines, tens of them per line. The starting angle is indicated in the leftmost column.

... Киевский клуб любителей астрономии "Астрополис" > . ... Оборудование (Модераторы: LifeIsGood , Hornet ) > . Point Grey USB 3. Как вам новость? ... Новости . ... Бердянское общество любителей астрономии "ОРИОН" . ... Одесское общество любителей астрономии ?АСТРОДЕС? Портал белорусских любителей астрономии - BelAstro.Net . ... Благодарностей: 0 . ... 21 Сентябрь 2009, 11:57:58 ? ... Point_Grey_USB3.jpg (16.07 КБ, 278x395 - просмотрено 155 раз.) ... Ответ #1 : 21 Сентябрь 2009, 12:00:52 ? ...

Midday line determination by means of gnomon. At midday the shadows of all the objects are directed along the line pointing exactly from the South to the North. ... At one or two hours before midday mark the shadow edge from the pole with the help of a peg. ... Using the free part of the cord as a circle draw a circumference coming through the peg. ... A straight line coming through the middle of the line, connecting the first and the second peg and the base of gnomon is a midday line. ...

SAI VO . ... SAI CAS . ... Access . ... http://vo.astronet.ru/sai_cas/conesearch?RA= $RA &DEC= $DEC &SR= $radius &cat= $catalog &tab= $table &format= $format . http://vo.astronet.ru/sai_cas/conesearch?RA= $RA &DEC= $DEC &SR= $radius &cat= $catalog &tab= $table &format= $format &columns= $columns . http://vo.astronet.ru/sai_cas/conesearch?RA= $RA &DEC= $DEC &SR= $radius &cat= $catalog &tab= $table &format= $format &withdist= $withdist &NULLS= $nulls where . ... File to store the results . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . des actualit†йs . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil La galaxie NGC 4696, point d'interrogation cosmique . ... Un mince filin enroul†й sur lui-m†кme termin†й par un point lumineux: la forme †йtrange de la galaxie elliptique NGC 4696 fascine les scientifiques. ...

... Марсоход Curiosity . ... Отдельная страница/ссылка на новость: Гряда 'Point Lake' на Марсе, кратер Гейла . ... Гряда 'Point Lake' заинтересовала ученых еще в октябре 2012 г., когда было обнаружено на снимках марсохода с востока. Гряда 'Point Lake' на Марсе, кратер Гейла . ... Марсианская научная лаборатория (Mars Science Laboratory, MSL) , - миссия НАСА, в ходе выполнения которой на Марс был успешно доставлен и эксплуатируется марсоход третьего поколения 'Кьюриосити' (Curiosity, Любопытство). ...

... 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. ...