British Almanac and Companion, 48. kötetStationers' Company, 1875 |
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6. oldal
... observations made by Bessel extended from August , 1837 , to the end of March , 1840 ; and the instrument employed was a large heliometer , with an excellent object glass by Fraunhofer , which Sir John Herschel , on seeing uncut at ...
... observations made by Bessel extended from August , 1837 , to the end of March , 1840 ; and the instrument employed was a large heliometer , with an excellent object glass by Fraunhofer , which Sir John Herschel , on seeing uncut at ...
7. oldal
... observations of a Cen- tauri with the excellent meridian instruments of the Royal Observatory at the Cape of Good Hope , which he reduced on his return to England , and thereby found the parallax to be 0 · 91 . His successor at the Cape ...
... observations of a Cen- tauri with the excellent meridian instruments of the Royal Observatory at the Cape of Good Hope , which he reduced on his return to England , and thereby found the parallax to be 0 · 91 . His successor at the Cape ...
13. oldal
... observations were made , no confirmation of them was able to be obtained at any other observatory ; but when Dr. Auwers was made acquainted with them , he went through his calcula- tions of the orbit of the body , by which he supposed ...
... observations were made , no confirmation of them was able to be obtained at any other observatory ; but when Dr. Auwers was made acquainted with them , he went through his calcula- tions of the orbit of the body , by which he supposed ...
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