ernst opik (13 Ergebnisse)

Hardcover. Zustand: Fair. No Jacket. Readable copy. Pages may have considerable notes/highlighting. ~ ThriftBooks: Read More, Spend Less.

Zustand: Very Good. 1960. Paperback. Very good copy with light shelf wear. Previous owners name on first page, remains very good. . . . . Books ship from the US and Ireland.

Paperback. Zustand: Very Good. 124p paperback journal, illustrated cover with pink title, firm binding, minimal wear to edges, pages clean and neat, photographs and illustrations throughout, many contemporary advertisements, very good copy, published just before the first moon landing Language: English.

Zustand: Very Good. 1960. Paperback. Very good copy with light shelf wear. Previous owners name on first page, remains very good. . . . .

Tartu 1943, OBroschur 51 S., Da die Bücher aus Lettland verschickt werden, beträgt die Versandkostenpauschale unabhängig der Menge 6 EUR bis 30 kg nach Deutschland und 12 EUR innerhalb der EU-Länder!

Zustand: Buone. italiano Condizioni dell'esterno: Discrete con difetti, segni d'uso bruniture Condizioni dell'interno: Discrete con Difetti, bruniture.

Karton. Zustand: Gut. 174 S, 20cm Zustand: Besitzvermerk von 1959 auf erster Seite, wenig gebräunt, Fadenbindung --- Inhalt: The Setting, The Atmosphere, Classification and Physico-Chemical Properties of Meteors, Meteorid Energy Transfer. KK-PS21-6 Sprache: Englisch Gewicht in Gramm: 200.

orig. wrappers. 23x16cm, 86 pp., Series: Publications de l'Observatoire Astronomique de l'Université de Tartu, Tome 30, No. 5. Partially unopened. Corner bump. Some toning to cover edges. VG.

orig. wrappers. 23x16cm, 113 pp., Series: Publications de l'Observatoire Astronomique de l'Université de Tartu, Tome 30, No. 6. Unopened. Corner bump. Foxing to cover. Small tear to spine. VG.

orig. wrappers. 23x16cm, 165 pp., Series: Publications de l'Observatoire Astronomique de l'Université de Tartu, Tome 27, No. 1. Unopened. Minor wear. Some cover-edge fraying. VG.

orig. wrappers. 23x16cm, 118 pp, Series: Publications de l'Observatoire Astronomique de l'Université de Tartu, Tome 30, No. 3. Unopened. Minor wear. Light cover soil. VG.

orig. wrappers. Zustand: Unopened. Minor wear. VG. 23x16cm, 175 pp., Series: Publications de l'Observatoire Astronomique de l'Université de Tartu, Tome 26, No. 2.

orig. wrappers. Zustand: Unopened. Some wear. Good. 24x16cm, NINE ITEMS. This is a collection of nine papers, all authored or co-authored by Öpik between 1924-1943, all published at Tartu in the series "Publications de l'Observatoire Astronomique de l'Université de Tartu". Includes: 1) " Photometric Measures on the Moon and the Earth-shine" [1924, 68pp]; 2) " Determination of Colour-Equivalents of Stars According to Tikhoff's Method.,." [1925, 32pp]; 3) "Measures of Double Stars (1924- 1926)" [1927, 55pp] ; 4) "Stellar Distribution and the Law of Chance: Second Paper" [1934, 28 pp; a tear to cover]; 5) "Telescopic Observations of Meteors at the Tartu Observatory" [1930, 16pp]; 6) "Stellar Distribution and the Law of Chance: Third Paper" [1934, 20pp]; 7) "Determination of Colour-Equivalents of Stars According to Tikhoff's Method : Second Paper" [1935, 26pp]; "The Densities of Visual Binary Stars" [1935, 16pp]; "Zusammengesetzte Sternmodelle, II" [1943, 51pp]. ["Öpik was an Estonian astronomer and astrophysicist .,.In 1922, Öpik published a paper in which he estimated the distance of the Andromeda Galaxy. He determined the distance using a novel astrophysical method based on the observed rotational velocities of the galaxy. .,.His method is still widely used.,.In 1922 he correctly predicted the frequency of craters on Mars long before they were detected by space probes. In 1932 he postulated a theory concerning the origins of comets in our solar system. He believed that they originated in a cloud orbiting far beyond the orbit of Pluto. This cloud is now known as the Oort cloud or alternatively the Öpik-Oort Cloud ., - wikipedia].