... The spectrum of the brightest star, our Sun, shows several dark gaps perpendicular to the flow of it’s colours (figure 1). These so called spectral absorption lines where discovered in 1802 by the English scientist William Wollaston. ... Some stars as Pollux show a spectrum similar to that of our sun with strong Ca II and Fe II lines, others as Sirius or Vega show strong absorption lines of hydrogen, others, as Mira show very complicated spectra due to molecular absorption lines (see figure 5). ...
Moscow Astronomical Plate Archives: . Contents, Digitization, Current and Possible Applications . ... We describe the astronomical plate archives in Moscow and Zvenigorod and the existing digitization projects. ... 2 The Plate Archive of the Sternberg Institute . The contents of the most important Moscow astronomical plate archive, that of the Sternberg Astronomical Institute, was briefly presented in Shugarov et al. [1] in 1999. ... THE MOSCOW PLATE COLLECTION (STERNBERG INSTITUTE) . ...
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... Space flight . Crew training . ... A task of selection and preflight training is to form up and to train a crew for a space mission. ... Training in crews on the "Soyuz" transport space vehicle and on the "Earth-Moon-Earth" interplanetary flight program, . ... Basic space training of a lunar crew provides for acquiring a fundamental knowledge on the origin, structure and evolution of the Universe, studying methods and means of space flights performance, use of space for the benefit of mankind. ...
Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...
... The reduction system of observations FADPS (description in Russian) (Flexible Astronomical Data Processing System) for data of wide-band receivers of the first observation cabin of the radio telescope RATAN-600 had been created under the Unix-like operational system DEMOS for computers of the SM-1420-type (PDP/11) in 1987 for observation analysis and estimates of coordinates and flux densities of radio sources. ... FADPS: flexible astronomical data processing system at RATAN-600 in UNIX environment....
On properties of metallicity function of F-stars in the galactic disk . Yu.Shevelev & V.Marsakov . ... MF of different age disk stars . ... Age-metallicity relation . ... Based on the complete sample from ( Marsakov & Shevelev, 1995a ) we determined in ( Shevelev & Marsakov, 1995 ) the vertical metallicity gradients of disk population stars in several narrow age ranges from the observed metallicity values and the calculated maximum distances of their orbits from the galactic plane. ...
Journal of the Amateur Astronomers Association of New York November 2008 Volume 56 Number 11, ISSN 0146-7662 EYEPIECE By examining other planetary star systems, Low said, we get to see if our solar system is typical. Star formation happens [relatively] quickly, with interstellar gas and dust cooling to form planets within the planetary disk. ... November 1 Moon lies near Venus. ... The Moon is to the right on the first night, but the next day joins the two planets in a tight, beautiful gathering. ...
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