Monthly Notices of the Royal Astronomical SocietyPriestly and Weale, 1861 |
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Page 46
... length of the period of R Sagittæ are confined within moderate limits , and that this star may be ranked in the class of moderately regular variables . Using the mean period of 70-88 days in combining all the observations made in the ...
... length of the period of R Sagittæ are confined within moderate limits , and that this star may be ranked in the class of moderately regular variables . Using the mean period of 70-88 days in combining all the observations made in the ...
Page 55
... length on this evening has been variously estimated from 100 ° to 120 ° by the most careful observers . In the telescope of the heliometer there appeared a nucleus of an elliptical shape , with its major axis a little inclined to the ...
... length on this evening has been variously estimated from 100 ° to 120 ° by the most careful observers . In the telescope of the heliometer there appeared a nucleus of an elliptical shape , with its major axis a little inclined to the ...
Page 58
... length , being visible beyond the zenith . July 4. The comet is rapidly becoming fainter . The tail could not be traced farther than 40 ° from the nucleus , but the brilliancy of the nucleus is still very great . In the telescope the ...
... length , being visible beyond the zenith . July 4. The comet is rapidly becoming fainter . The tail could not be traced farther than 40 ° from the nucleus , but the brilliancy of the nucleus is still very great . In the telescope the ...
Page 61
... length , 3 inches aperture . An Account of Observations on Solar Radiation . By John James Waterston , Esq . computations with reference to the Sun's heat , and suggesting § 1. In March of last year I submitted to the Society some a ...
... length , 3 inches aperture . An Account of Observations on Solar Radiation . By John James Waterston , Esq . computations with reference to the Sun's heat , and suggesting § 1. In March of last year I submitted to the Society some a ...
Page 64
... length 6 inches . The bulb of the solar ther- mometer was 0.42 inch in diameter , spherical in shape , and fixed in the centre , as shown in the figure . Its shadow was an easy guide in moving the tube in altitude and azimuth to keep ...
... length 6 inches . The bulb of the solar ther- mometer was 0.42 inch in diameter , spherical in shape , and fixed in the centre , as shown in the figure . Its shadow was an easy guide in moving the tube in altitude and azimuth to keep ...
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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