Monthly Notices of the Royal Astronomical SocietyPriestly and Weale, 1861 |
From inside the book
Results 1-5 of 28
Page 1
... aperture of 72mm.5 ( 2.9 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 ...
... aperture of 72mm.5 ( 2.9 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 ...
Page 10
... aperture , top and bot- tom , exactly equal to the coloured disk ; so that , while the strong light of a lamp enclosed in a lantern is thrown on a highly reflective surface attached to the box , the disk is viewed by the light thus ...
... aperture , top and bot- tom , exactly equal to the coloured disk ; so that , while the strong light of a lamp enclosed in a lantern is thrown on a highly reflective surface attached to the box , the disk is viewed by the light thus ...
Page 13
... aperture , power 173. Longitude 245 W. Nov. 7th , 1861 . 15 , 16 Places of the Comet II . , 1861 , from Sextant - Observations of the Distances of the Comet from Fixed Stars , made by Commander A. L. Mansell , R.N. , commanding H. M. S. ...
... aperture , power 173. Longitude 245 W. Nov. 7th , 1861 . 15 , 16 Places of the Comet II . , 1861 , from Sextant - Observations of the Distances of the Comet from Fixed Stars , made by Commander A. L. Mansell , R.N. , commanding H. M. S. ...
Page 22
... 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 , Geodäsie , und ...
... 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 , Geodäsie , und ...
Page 25
... 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 length , has a ...
... 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 length , has a ...
Other editions - View all
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