Index for 1927

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  1. Report of the Director of the Observatory at Leiden for the year 1926

    Added on 2006-12-21

  2. Observations of the transit of Mercury of November 10, 1927

    Added on 2006-12-21

  3. New southern double stars, third list

    Added on 2006-12-21

  4. On the secular accelerations and the fluctuations of the longitudes of the Moon, the Sun, Mercury and Venus (Errata: 4 70)

    Added on 2006-12-21

  5. Measures of Saturn's satellites in 1927

    Added on 2006-12-21

  6. The coordinates of the Sun's apex from proper motions of stars of the third type

    Added on 2006-12-21

  7. Summary of the principal radial velocity data used for the results of Bull. Astr. Inst. Netherlands 3 275 and 4 79

    Added on 2006-12-21

  8. Observations of the eclipse of the Sun on June 29, 1927

    Added on 2006-12-21

  9. Remarks on photographic colour equivalents and related problems

    Added on 2006-12-21

  10. Observational evidence confirming Lindblad's hypothesis of a rotation of the galactic system

    Added on 2006-12-21

  11. On the reliability of interferometer and photographic measures of double stars

    Added on 2006-12-21

  12. The orbit of Bu G. C. 2159, β744 (Errata: 3 V)

    Added on 2006-12-21

  13. Note on the excitation of ""forbidden"" lines in the nebular spectrum

    Added on 2006-12-21

  14. Additional notes concerning the rotation of the galactic system

    Added on 2006-12-21

  15. Investigations concerning the rotational motion of the galactic system together with new determinations of secular parallaxes, precession and motion of the equinox (Errata: 4 94)

    Added on 2006-12-21

  16. New southern double stars, fourth list

    Added on 2006-12-21

  17. Further note on the causes of the discontinuous changes of the Earth's rotation and their possible effect on the intensity of gravity

    Added on 2006-12-21

  18. On the longitude of the Sun in the years 1864-1900 and the rotation of the Earth (Errata: 4 70, 94)

    Added on 2006-12-21

  19. Colour equivalents of 191 stars near the North Pole

    Added on 2006-12-21

  20. The motion of 36 Ophiuchi

    Added on 2006-12-21

  21. On the oscillating Ca<SUP>+</SUP> lines in O and B stars

    Added on 2006-12-21

  22. New southern double stars, fifth list

    Added on 2006-12-21

  23. On the most probable values of some astronomical constants, first paper, constants connected with the Earth

    Added on 2006-12-21

  24. Preliminary orbit of I 260, β<SUB>2</SUB> Tucani

    Added on 2006-12-21

  25. Line absorption and Cepheid pulsation

    Added on 2006-12-21

  26. A remarkable nebulous multiple star

    Added on 2006-12-21

  27. The variable star of the δ Cephei type H. D. 154365; 16<SUP>h</SUP>59<SUP>m</SUP>.9 - 26°27' (1900)

    Added on 2006-12-21

  28. Summary of the results derived from a discussion of the longitudes of Jupiter's satellites, with special reference to the rotation of the Earth (Errata: 3 V)

    Added on 2006-12-21

  29. Corrected observations of Eros

    Added on 2006-12-21