British Astronomical Association

Supporting amateur astronomers since 1890

Journal of the British Astronomical Association. Vol.21 No.8

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  • 6BAA Journal VOL. 21 (XXI) No. 8. May and June 1911
  • 60Crepuscular Rays.
  • 8OFFICERS
  • 10REPORT OF THE MEETING OF THE ASSOCIATION, HELD ON WEDNESDAY, MAY 31, 1911
  • 17REPORTS OF THE BRANCHES
  • 17NEW SOUTH WALES BRANCH (SYDNEY).
  • 18REPORTS OF THE SECTIONS
  • 18Variable Star Section.
  • 18Long Period Variables in 1910.
  • 24PAPERS
  • 24On the Smallest Visible Phase of the Moon
  • 31The Wave-Curve.
  • 34Nutation.
  • 40Theory of Grazing Collisions: Is it necessary to suppose that impact actually occurs ?
  • 46Additional Remarks on the Light of Meteorites.
  • 55The Luminosity of Meteors.
  • 71Report of the Astronomer Royal to the Board of Visitors of the Royal Observatory, Greenwich, read at the Annual Visitation of the Royal Observatory, 1911, June 2.
  • 6Contents.
  • 60The Total Eclipse of the Sun, April 28th, 1911.
  • 61The Solar Eclipse as seen in Melbourne.
  • 62Observations of the Partial Phase.
  • 64OBITUARIES
  • 64Mrs. Fleming.
  • 64Mr. W. Coleman, F.R.A.S.
  • 65CORRESPONDENCE
  • 65Astronomy in the Encyclopaedia Britannica: A Warning.
  • 65Mr. Davidson's Explanation of Meteorites.
  • 68Meteors and Text-books.
  • 69Comet 1910 a.
  • 69A Royal Cometographer.
  • 70Babylonian Astrology: A Reply.
  • 71QUERIES
  • 71NEW BOOKS AND MEMOIRS
  • 57Meteors.
  • 71Thirty-sixth Annual Report of the Savilian Professor of Astronomy to the Visitors of the University Observatory for 1910-11.
  • 78ETEORIC FIREBALLS AND METEORS
  • 78REQUESTS TO OBSERVERS OF COMETS
  • 72ROYAL ASTRONOMICAL SOCIETY
  • 73COMET NOTES
  • 74SPECTROSCOPIC ANALYSIS.
  • 75MEMORANDA FOR OBSERVERS
  • 75Jupiter
  • 75Shower of Meteors from Andromeda.
  • 76ASTRONOMICAL PUBLICATIONS
  • 76THE TOTAL SOLAR ECLIPSE, 1911, APRIL 28. Charles P. Butler
  • 77THE CATANIA OBSERVATIONS OF SUN-SPOTS AND FACULAE
  • 77PROPER MOTIONS IN SUN-SPOT GROUPS
  • 77SOLAR DISTURBANCES
  • 77THE SOLAR APEX
  • 77ON THE QUALITY OP THE LIGHT REFLECTED FROM DIFFERENT PARTS OF THE SURFACE OF THE MOON
  • 78DETERMINATIONS OF THE MOON'S PARALLAX FROM MERI­DIAN OBSERVATIONS OF THE CRATER MOSTING a
  • 71Twenty-first Annual Report of the Astronomer Royal for Scotland, 1910-11.
  • 72NOTES
  • 79THE GALACTIC DISTRIBUTION OF SPIRAL NEBULAE
  • 79NOTE ON MR. A. S. EDDINGTON'S MOVING CLUSTER OP STARS IN PERSEUS
  • 79PRESSURE IN STELLAR ATMOSPHERES.
  • 79THE PROPER MOTIONS OF THE STARS.
  • 80THE MOVEMENT OF STARS OF THE ORION TYPE
  • 80THE VARIABLE STARS, EW CASSIOPEIA, 97.1910 CTGNI, AND U PERSEI
  • 80THE INTRINSIC LIGHT AND EFFECTIVE TEMPERATURES OF ALGOL AND ITS SATELLITE
  • 81THE BRIGHTNESS OF THE SKY AT NIGHT
  • 81PRECAUTIONS NECESSARY IN PHOTOGRAPHIC PHOTOMETRY
  • 82A PLEA FOR THE REFLECTING TELESCOPE.
  • 82HISTORY OF ASTRONOMY
  • 82THE SOCIETY FOR PRACTICAL ASTRONOMY
  • 83NOTICES
  • 83EDITOR AND DIRECTORS
  • 84New Members of the Association. Elected 31st May 1911.
  • 84Candidates for Election as Members of the Association. 25th October 1911.
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