В&K : . ... О церковном календаре . ... Деяния совещания глав и представителей автокефальных православных Церквей в связи с празднованием 500-летия автокефалии Русской Православной Церкви . ... Иванов А.В. Несколько замечаний по поводу статьи В.А. Уварова "К вопросу о датировке православной пасхалии" . ... Лаврус В. История календаря . ... Часто задаваемые вопросы о календарях Русский перевод версии 2.4 от 28 октября 2001 г. Уваров В.А. К вопросу о математической датировке православной пасхалии . ...

... Telescopes . LX850 Series . ... 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's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... LightBridgeтДв dobs give you high quality Meade optics, premium components, and ultra portability. ...

... A star party is a gathering of amateur astronomers who set up their telescopes and observe the dynamic night sky. ... Star parties are best scheduled during first quarter and waxing gibbous Moon. During full moon, the moon is so bright it obscures a view of other celestial objects and even the Moon is best viewed when NOT full. ... We will consult local weather forecasters and make a decision by 2:00p on the day of the star party. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... STScI-PRC00-36 GHOSTLY REFLECTIONS IN THE PLEIADES NASA's Hubble Space Telescope has caught the eerie, wispy tendrils of a dark interstellar cloud being destroyed by the passage of one of the brightest stars in the Pleiades star cluster. ... In 1890, American astronomer E. E. Barnard, observing visually with the Lick Observatory 36-inch telescope in California, discovered an exceptionally bright nebulosity adjacent to the bright Pleiades star Merope. ...

... To construct a scale model of Saturn and its rings . ... Students will construct a scale model of Saturn; use it to explain a Voyager image of Saturn's shadow on its rings; and, by trial and error, discover that light moves through space in straight lines. ... If the students correctly identify the ring's shadow on the planet and the planet's shadow on the rings, label these as well. ... ii) As they raise or lower the flashlight relative to the grapefruit, the shadow of Saturn on its rings changes. ...

Through Thick and Thin . In this Thread, we will discover how a given amount of light changes in intensity when the area it shines on changes.We will also make a final observation about the change in light and heat that happens when we tilt towards or away from the Sun. This explains why things seem less warm during the winter months, when the section of Earth we live on is tilting away from the Sun. ... So the light is thicker and brighter when the globe is tilted towards the light. ...

Instrument Science Report NICMOS-005 Characterisation of NICMOS array flatfield response. ... Unfortunately, these initial results only encompassed two measurements per array, through broadband J and K filters. ... Flat-field response tests. ... 5 Figure 1: flat-field response images obtained through 10% bandwidth filters centered on wavelengths of (a) 0.8?m, (b) 1.5?m, (c) 2.1?m and (d) 2.5?m. The images have been normalised to the mean response for each wavelength. ...

... Procedure . ... Nobody may go up on the PSS unless they have emptied out all of their pockets and are not carrying anything that could fall and damage the mirror. ... M1, properly crated, with the lifting spider in the center. ... Common Corrector, properly crated, with corrector cover installed. ... Using the crane, hoist the common corrector mounting ring into position on the PSS. ... Attach the crane hook to the common corrector cover (with common corrector attached) using 3-point suspension. ...

... National Science Week @ Google . ... If you've ever wondered what the ASKAP spectrum looks like, Vanessa Moss aka @cosmicpudding has the answer. ... Vanessa printed this out on to 36 pages of A4 paper to demonstrate the Big Data aspect of ASKAP, as part of a panel about developing Australia's national STEM talent for National Science Week and the Sydney Science Festival. ... You can read more about Vanessa and her research in this SMH profile . ... today * ATNF | ... ASKAP | ...