Popular Astronomy, Volume 8; Volume 1900Goodsell Observatory of Carleton College, 1900 |
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Page 6
... lenses of a refractor , and it is noteworthy that this superiority of the reflector be- comes more pronounced the finer the atmospheric conditions un- der which the two classes of instruments are compared . On one of the fine nights ...
... lenses of a refractor , and it is noteworthy that this superiority of the reflector be- comes more pronounced the finer the atmospheric conditions un- der which the two classes of instruments are compared . On one of the fine nights ...
Page 18
... lens and 5 x 7 plate with camera attached to my 81⁄2 inch Brashear reflector but as no meteors were seen I aban- doned the work . I enclose the chart of meteors as seen . BARRE CENTER , N. Y. Nov. 19 , 1899 . NORTH CASSIOPEIAS WESTON ...
... lens and 5 x 7 plate with camera attached to my 81⁄2 inch Brashear reflector but as no meteors were seen I aban- doned the work . I enclose the chart of meteors as seen . BARRE CENTER , N. Y. Nov. 19 , 1899 . NORTH CASSIOPEIAS WESTON ...
Page 27
... lens which bore his name long filled a place entirely its own in photography , and when the Government placed the administration of the total eclipse expedition of 1869 in the hands of Professor Morton , then Sec- retary of the ...
... lens which bore his name long filled a place entirely its own in photography , and when the Government placed the administration of the total eclipse expedition of 1869 in the hands of Professor Morton , then Sec- retary of the ...
Page 52
... Kansas . FRED HATCH . Leonids at New York City . It may interest you to hear from your asteern observers of the Leonid meteors , our Mr. Chas . Lembke , Mr. Otis Wattles and Mr. Holtz of the Goerz Lens Co. , 52 General Notes .
... Kansas . FRED HATCH . Leonids at New York City . It may interest you to hear from your asteern observers of the Leonid meteors , our Mr. Chas . Lembke , Mr. Otis Wattles and Mr. Holtz of the Goerz Lens Co. , 52 General Notes .
Page 53
... lenses used were 4.4 portrait tube and lenses ground by Chas . Lembke . Jr. The other camera was supplied with a Goerz astigmat wide angle lens . Our disappointment was very great , as our station ,. PHOTOGRAPHIC CAMERA By Gall & LEMBKE ...
... lenses used were 4.4 portrait tube and lenses ground by Chas . Lembke . Jr. The other camera was supplied with a Goerz astigmat wide angle lens . Our disappointment was very great , as our station ,. PHOTOGRAPHIC CAMERA By Gall & LEMBKE ...
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Common terms and phrases
Algol Allegheny Observatory angle aperture appear astronomical Astrophysical axis bright chart circle clouds College comet coördinates corona craters curve Cygni determined diameter Director discovery distance double stars Earth ephemeris equator equatorial Eros Euclid exposure faint geometry give given Greenwich Harvard College Observatory Herculis hour hour angle inches instrument interest July Jupiter lens Leonids Lick Observatory light magnitude Mars means measures Mercury meridian meteors micrometer minima Moon Moon's motion nebula non-Euclidean geometry objects observations obtained orbit parallax period perpendicular photographic planet plate polar POPULAR ASTRONOMY position Professor Keeler reflector refractor right ascension satellite Saturn seen Sept shadow bands solar solar eclipse spectra spectroscopic spectrum SS Cygni straight Sun's surface telescope tion total eclipse triangle University VARIABLE STARS Venus visible Yerkes Yerkes Observatory