Monthly Notices of the Royal Astronomical SocietyPriestly and Weale, 1861 |
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Page 1
... inches nearly ) , a focal length of 800mm ( 32 inches nearly ) , and was used with a magnifying power 47. The micrometer consisted of a glass plate in the field of view , bearing a net of equal divisions , which divided the whole field ...
... inches nearly ) , a focal length of 800mm ( 32 inches nearly ) , and was used with a magnifying power 47. The micrometer consisted of a glass plate in the field of view , bearing a net of equal divisions , which divided the whole field ...
Page 19
... inch thick . It would have been an advantage , as regards loudness , to have the hammer and anvil outside the case of the clock in the free open air of the room : this was not actually done , but the casing was taken in the form of a ...
... inch thick . It would have been an advantage , as regards loudness , to have the hammer and anvil outside the case of the clock in the free open air of the room : this was not actually done , but the casing was taken in the form of a ...
Page 22
... inches French in aperture and 9 feet 8 inches focal length ) , and is in course of construction , when it arrives , may per- haps give a totally different direction to the efforts of the Observatory . Taschenbuch für Mathematik , Physik ...
... inches French in aperture and 9 feet 8 inches focal length ) , and is in course of construction , when it arrives , may per- haps give a totally different direction to the efforts of the Observatory . Taschenbuch für Mathematik , Physik ...
Page 25
... inches clear aperture , with a focal length of 8 feet , and is an excellent in- strument of its class . Price 120l . without the piers . The Meridian Circle , by Jones , is 6 feet in diameter , and its telescope , of the same focal ...
... inches clear aperture , with a focal length of 8 feet , and is an excellent in- strument of its class . Price 120l . without the piers . The Meridian Circle , by Jones , is 6 feet in diameter , and its telescope , of the same focal ...
Page 37
... inches aperture ; power used , 78. I first pointed the telescope at about 19.50 Slierna mean time . The planet , being considerably advanced on the disk , appeared perfectly well defined , round . and black . I watched the phenomenon ...
... inches aperture ; power used , 78. I first pointed the telescope at about 19.50 Slierna mean time . The planet , being considerably advanced on the disk , appeared perfectly well defined , round . and black . I watched the phenomenon ...
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Common terms and phrases
2r+g Airy Alhazen Annex appears April Astronomer Royal bright Calculation CAYLEY clock Comet computed corrected crater Decl declination diameter difference distance Ditto ditto edge Ephemeris equations Equatoreal error excentricity eye-piece Greenwich inches aperture instrument July June Jupiter Jupiter's Satellites latitude light limb longitude Lunar m² e m² n² Mars Mean Solar measures Memoir meridian Minor Planets Monthly Notices Moon Moon's Mean Motion N.P.D. from Observation Nautical Almanac nearly Nebula nucleus Number of Observations obtained Occultation orbit parallax perihelion photographs Prof R.A. from Observation Radcliffe Catalogue radiation Right Ascension ring Royal Observatory Saturn Secular Acceleration shadow Sirius Small Planets Society Solar Eclipse soleil stars Struve Sun's disk surface T. W. Webb taches telescope term thermometer tion Transit of Mercury Ursa Variable Variable Stars W. R. Dawes Weisse