... The metallicity distribution of disk F stars in different age ranges: the left column for the sample of stars within 80 pc around the Sun; the right column for the restored complete sample at the solar galactocentric distance with allowance made for the radial metallicity gradient. The numbers indicate the age ranges expressed in billions of years. ... next figure . ...
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НОВОСТИ ФЕДЕРАЦИЯ ЭНЦИКЛОПЕДИЯ ИСТОРИЯ СТАНЦИЯ МИР ENGLISH . ... Мои публикации . ... ПУБЛИКАЦИИ . ... Alexander Zheleznyakov , translated by Mikhail Vorobyov . The outstanding Russian expert in the field of artillery and rocket engineering Alexander Dmitrievich Zasjadko was born in 1779 in the family of Malorossian (Ukrainian) noblemen in the village of Lutenka in the Gadjachskiy district of the Poltava region. ... Под эгидой Федерации космонавтики России. А.Железняков , 1997-2002. ...
Journal of the Amateur Astronomers Association of New York December 2009 Volume 57 Number 12, ISSN 0146-7662 EYEPIECE tational repulsion." ... The Moon is a fingernail crescent the morning of December 14 and shouldn't interfere with the Geminids, one of the year's most reliable meteor showers. ... Decembers Constellations. ... The group of sunspots spanned approximately one-eighth of the width of the solar disk. ... The Moon occulted parts of the Pleaides star cluster on the night of November 3-4. ...
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