... Further uncertainty is added by most Pleiads sharing names with otherwise unrelated mythological characters. ... The Pleiad(e)s were the seven daughters of Atlas and Pleione, and half-sisters of the Hyades, whose mother was thra (`bright sky'; a different thra than the mother of Theseus). They were perhaps also half-sisters of the Hesperides, who were daughters of either Night alone, or Atlas and Hesperis (`evening'), or Ceto and Phorcys. ... Another Asterope was daughter of the river Cebren. ...

... Bad Astronomy . Misconceptions . ... First, let's see if there can be any effect from the planets and stars as astrologers claim. ... Either way, the planets' combined force is miniscule compared to the Sun's. If EM is the force behind astrology, the planets could be safely ignored. ... After all, if a force cannot be measured, it cannot have an effect on us, and if astrologers say such a force exists, then all their claims must be based on that force, and should be consistent with each other. ...

... the time of observation . ... Observing the Changing Position of the Sun To Establish Cardinal Directions . ... Observations of the Sun's apparent movement across the sky and its pattern of rising and setting in the east and west horizon helped to establish the cardinal directions. ... The final stage of the Sun's return was marked by the observation that the Sun had reached its highest altitude when the full width of your mitted hand could fill the gap between the Sun and the horizon. ...

Determination of an Intermediate Perturbed Orbit from Range and Range Rate Measurements at Three Time Instances . ... Very Long Baseline Interferometry (VLBI), Small Solar System Body (SSSB), an intermediate perturbed orbit, a fourth-order tangency to the trajectory of perturbed motion, range measurements, range rate measurements, range observations, range rate observations, computing the preliminary orbit of a small celestial body, the degree of approximation of the real motion, the Keplerian orbit. ...

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

... RECOMMENDED VALUES OF PHYSICAL CONSTANTS AND CONVERSION FACTORS. ... This reference must be included when these constants are used in a context where their full accuracy is important. ... elementary charge (of proton) . ... gravitational constant . ... unified atomic mass constant . ... of electron . ... of proton . ... Planck constant . ... Rydberg constant, m 0 2 m e e 4 c 3 /8h 3 . ... fine structure constant, m 0 e 2 c/2h . ... Bohr radius, h 2 ( pm 0 c 2 m e e 2 ) . ... Bohr magneton, e h /2m e...

... Project page . ... Project workpage . Turbulence in the Multiphase Interstellar Medium . Project I | ... Project highlight | ... Towards simulating turbulence with adaptive meshes . ... A. Kritsuk, P. Padoan, M. Norman . ... A. Kritsuk M. Norman . ... A. Kritsuk, M. Norman, P. Padoan . astro-ph/0411626 | ... P. Padoan, A. Kritsuk, M. Norman, A. Nordlund . ... Introducing Enzo, an AMR Cosmology Application . B. O'Shea, G. Bryan, J. Bordner, M. Norman, T. Abel, R. Harkness, A. Kritsuk . ...

... Астронет | ... Год темной космологии . ... Темная материя и темная энергия становятся общепризнанными невидимыми составными частями нашей Вселенной, так же как невидимые кислород и азот стали общепризнанными компонентами земной атмосферы . ... Публикации с ключевыми словами: cosmology - Космология - многомерное пространство - dimensions - темная материя - темная энергия . Публикации со словами: cosmology - Космология - многомерное пространство - dimensions - темная материя - темная энергия . ...

... Looking down on a storm (image credit: Robert Johnston) . Spearheaded by the Project Lead Robert Johnston of Cookstown High school, along with the support of Gerard McStocker from Holy Trinity College and the тАШhighlyтАЩ experienced High Altitude Balloonist Philip Heron , this leading edge school project has left us gazing into the sky! ... The Sun from the stratosphere just north east of Dublin (Image credit: Robert Johnston) . ... The limb of the Earth (Image credit: Robert Johnston) . ...

... For instance, one can write . ... This is not an equation but an identity , an expression true for any three numbers (a,b,c). ... Identities do not add any information about the quantities which they contain, because they are true whatevers their values may be. They are however useful in reshuffling equations to new, cleaner forms. The identity written on top is actually one of the basic properties of numbers ("the distributive law"). ... a 2 + 2ab + b 2 . ... Again, the two last identities . ...