British Astronomical Association

Supporting amateur astronomers since 1890

Journal of the British Astronomical Association. Vol.30 No.1

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  • 1BAA Journal - Vol.30 (XXX) No.1 - November 1919
  • 32EMISSION SPECTRA AND ATOMIC STRUCTURE.
  • 20Reports of the Branches
  • 20WEST OF SCOTLAND BRANCH (GLASGOW).
  • 22Reports of the Observing Sections.
  • 22Aurorae and Zodiacal Light Section.
  • 22Aurorae.
  • 22Meteor Section.
  • 23Meteor Observations from the Southern Hemisphere. By the Rev. M. DAVIDSON
  • 24Notes on the Progressive Spectra of Nova Aquilae, 1918. By the Rev. A. L. CORTIE
  • 23Papers communicated to the Association
  • 26Reviews
  • 26Planetary Rotation Periods and Group Ratios. By F. A. Black
  • 27Correspondence.
  • 27THE AURORA OF AUGUST 12, 1919
  • 28THE YOUNG MOON SEEN AS A CIRCLE
  • 29Notes
  • 29COMET NOTES
  • 19Officers and Council FOR THE SESSION OCT. 1919 ΤΟ SEPT. 1920
  • 1REPORT OF THE ANNUAL MEETING OF THE ASSOCIATION, HELD ON WEDNESDAY, OCTOBER 29, 1919
  • 3THE GREAT PROMINENCE PHOTOGRAPHED AT SOBRAL DURING TOTALITY. 1919 MAY 29.
  • 43Query.
  • 38SELF-LUMINOUS NIGHT HAZE
  • 39APPLICATION or PHOTO-ELECTRIC PHOTOMETRY TO ASTRONOMY
  • 40THE PARALLAX OF THE ORIQN NEBULA.—In Harvard Circular, 205, Prof. W. H. Pickering
  • 41BARNARD'S DARK NEBULAE.—The Astrophysical Journal
  • 42STARS SIMILAR IN SPECTRUM TO THE CEPHEID VARIABLES.
  • 42ASTRONOMICAL DATES
  • 42THE ECLIPSE PROMINENCE, 1919 May 29.
  • 36COLLISION OF Α PARTICLES WITH LIGHT ATOMS
  • 34THE QUANTUM THEORY AND NEW THEORIES OF ATOMIC STRUCTURE
  • 43If a body† were placed in space, in the position occupied by the Earth during Mars' next opposition, with no forces acting upon it other than the attraction of Mars, how long would the body take to reach Mars?
  • 43Notices of the Association
  • 43Affiliated Schools.
  • 44New Members of the Association. Elected 29th October 1919.
  • 44New South Wales Branch. NEW MEMBERS OF THE ASSOCIATION. Elected 1st October 1919.
  • 44Candidates for Election as Members of the Association. .26th November 1919.
  • 45Papers to be Head at the Meetings.
  • 38THE ATOMIC ETHER.—Herr L. Zehnder
  • 45Meetings of the Association.
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