ernst opik (23 risultati)

Soft cover. Condizione: Good. No Jacket. Wear to the covers. Front cover falls away from the spine. Pages toned. Otherwise a clean, unmarked copy.

Paperback. Condizione: Very Good. Paperback, in Very Good condition, there are no stamps writing or marks, paper is tanning with age, light corner creases, straight spine, solid binding, clean unmarked pages, nice shape for an older book,

paperback. Condizione: Good. Illustrated by Drawings (illustratore). First Edition; first thus". good condition, spine slant, may have old brittle glue at binding,I would recommend very carefull reading. 2 small chips at edge of pink & blue paper covers. ; photo of author back cover. ; 144pg pages; ASTRONOMY.PHYSICS.Cosmological Philosophy.Index.

Paperback. Condizione: Good. First Mentor printing. Light creases to the spine. A little wear to the edges.

brossura Copertina flessibile. Condizione: Molto buono (Very Good). Cappelli 1960Collana L'Universale Cappelli 87brossura, 11x19 cm, 182 pp.Volume con interni molto buoni. lievi tracce d'uso alla copertina, buono statoPer ogni problema, domanda, foto o necessità non esitate a contattarci per risolvere ogni vostra richiesta!25D-30(es9). Book.

paperback, Condizione: fair, Interscience, NY, 1958, trade paperbk., 174pp., ex-lib.- pocket, stamps, rubbed covers, glue showing at inner hinges, fair $.

Condizione: 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. Condizione: 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.

Condizione: 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!

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

Soft cover. Condizione: Very Good. Ernst J Opik, "Life and its Evolution from an Astronomical Viewpoint" in the Irish Astronomical Journal, March 1952, volume 2 number 1, pp 9-20 in the full issue of pp 1-32. Original wrappers. VG Interesting paper on the possibilities of life not-on-Earthalso the possibility of interstellar origins for life on Earth.

brossura morbida. Condizione: Good. 1. Copertina plastificata ombrata lievemente con segni di usura. Pagine ingiallite lievemente. morbida 182 Buono (Good) . Book.

Soft cover. Condizione: Very Good. OPIK, Ernst J. "The Martian Surface Craters larger than 20 kilometers have survived from the beginning; there never was a considerable atmosphere for any length of time". In: Science, 15 July 1966, vol 153 number 3733, pp 255-265 in the issue of pp 239-334. Original wrappers. VG copy. Two ex-libris stamps on cover as well as a scribbled one-word ink inscription on cover and mailing label on rear cover. "Intercomparisons of crater counts on Mars and the Moon suggest that the age of the visible Martian surface is approximately 340 to 680 million years."--Abstract.

Soft cover. Condizione: Very Good. Ernst J Opik, "Life and its Evolution from an Astronomical Viewpoint" in the Irish Astronomical Journal, March 1952, volume 2 number 1, pp 9-20 in the full issue of pp 1-32. Original wrappers. VG Interesting paper on the possibilities of life not-on-Earthalso the possibility of interstellar origins for life on Earth.

Hardcover. Condizione: Good. 1st Edition. HUBBLE, Edwin. "Angular Rotations of Spiral Nebulae" in the Astrophysical Journal, volume 81, number 4, May 1935, with the Hubble on pp 334-5 in the whole volume of 492pp covering January through June 1935. Bound in cloth. Ex-library. Each monthly issue offered with the original wrappers bound in. VG copy. Other contributors to this volume include Ernst Opik, George Ellery Hale, Otto Struve, Henry Norris Russell, Adriaan van Maanen and others. [++] "The outstanding discrepancy in the current conception of nebulae as extra-galactic systems lies in the large angular rotations announced more than a decade ago by Dr. van Maanen. The extraordinary significance of the phenomena, if they are real, has led the writer to remeasure four of the principal nebulae, M 81, M 51, M 33, and M 101.".

Condizione: Used: Very Good. Libro usato, proveniente da una collezione privata. La copertina riporta usuali segni del tempo. Le pagine possono risultare imbrunite o opacizzate. Consegna in 24/48 h. 6s.

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

orig. wrappers. Condizione: 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].