Na saite Astrometriya Astronomicheskie instrumenty Astronomicheskoe obrazovanie Astrofizika Istoriya astronomii Kosmonavtika, issledovanie kosmosa Lyubitel'skaya astronomiya Planety i Solnechnaya sistema Solnce

Angliiskii astronom, chlen Londonskogo korolevskogo ob-va (1938) i Yuzhnoafrikanskogo korolevskogo ob-va, ego prezident v 1949. R. v Peisli (Shotlandiya). V 1907 okonchil un-t v Glazgo, prodolzhal obrazovanie v Triniti-kolledzhe Kembridzhskogo un-ta. V 1914-1933 rabotal v Grinvichskoi observatorii, v 1933-1950 vozglavlyal observatoriyu na myse Dobroi Nadezhdy.

Nauchnye raboty otnosyatsya k fotograficheskoi astrometrii. Obrabotal i opublikoval nablyudeniya dvoinyh zvezd, provedennye v Grinviche v 1893-1919, opredelil orbity mnogih dvoinyh sistem. Sovmestno s X. Noks-Sho obrabotal nablyudeniya, vypolnennye T. Hornsbi v 1774-1798 v Redk-liffskoi observatorii (Oksford), kotorye byli zatem ispol'zovany dlya proverki tochnosti sovremennoi sistemy fundamental'nyh zvezd. V observatorii na myse Dobroi Nadezhdy rukovodil programmami opredeleniya polozhenii i parallaksov zvezd yuzhnogo neba. V 1935-1950 opublikoval parallaksy okolo 1600 zvezd, sfotografiroval bol'shuyu chast' ploshadok, v kotoryh izmeryalis' polozheniya zvezd. Poluchil vtorye epohi dlya zvezd v zonah ot -40 do -52 i opredelil sobstvennye dvizheniya 41 000 zvezd. Uchastvoval v treh ekspediciyah Grinvichskoi observatorii dlya nablyudeniya polnyh solnechnyh zatmenii (1927, 1929, 1932).

Prezident Londonskogo korolevskogo astronomicheskogo ob-va (1953-1955).

Zolotaya medal' Londonskogo korolevskogo astronomicheskogo ob-va (1952).

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