. The seminar is supported by the grant of Federal Programm "Integration" . annotation of talk . S.N.Fabrika (SAO) . Magnetic fields and rotational periods of white dwarfs . Modern observing data on magnetic fields and rotational periods of single white dwarfs are reviewed. The data obtained with 6-m telescope are also discussed. It is shown in spite of considerable scatter in observed values the magnetic fields and rotational periods of white dwarfs are related as it may follow from the theory.

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

... Большинству любителей недоступны крупные телескопы типа как Алькор и Мицар,и они останавливают свой выбор на таких недорогих компактных и моблильных инструметнах как зрительные трубы и монокуляры. Самые распространенные среди них - ЗРТ-457 и МП 20х60. За три года работы с этими инструментами я выявил не мало их скрытых достоинств, впрочем как и недостатков и хочу ниже в кратце рассказать о них. ... Поговорим об оптических достоинствах трубы. Они несколько хуже, чем у монокуляра. ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

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Astronomy Picture of the Day Archive . AstroNet AstroNet: for authors Astronet: APoD. ... Astronomy Picture of the Day Archive at NASA . ... Astronomical News . ... Hot Space News at Jordanian Astronomical Society . ... Latest Hubble Space Telescope Observations . ... Science @ NASA: news . ... Scientific.ru . Popular news on www.scientific.ru . ... News Services: find out the latest news in astronomy and the other sciences. ... The latest space news from the Jet Propulsion Laboratory . ...

... The data for ~ 5500 F-G stars are used to study their kinematics, metal abundance and HR diagram in terms of uvby photometry. The age - metallicity, velocity - metallicity, and age - velocity relations are derived. ... 4) At a given metallicity the kinematics of F dwarfs is close to that of G giants and the kinematics of G dwarfs is close to that of K giants. ... 1) При [Fe/H] < 0 звезды данной металличности обнаруживают отчетливую точку поворота главной последовательности (ГП). ...

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