Transactions of the International Astronomical Union: Reports on Astronomy

1. Front Matter

   Pages I-VIII

   PDF

2. Éphémérides

   • Cornelis De Jager

   Pages 1-10

3. Documentation

   • Cornelis De Jager

   Pages 11-14

4. Astronomical Telegrams

   • Cornelis De Jager

   Pages 15-17

5. Celestial Mechanics

   • Cornelis De Jager

   Pages 19-27

6. Positional Astronomy

   • Cornelis De Jager

   Pages 29-41

7. Instruments and Techniques

   • Cornelis De Jager

   Pages 43-73

8. Solar Activity

   • Cornelis De Jager

   Pages 75-128

9. Radiation and Structure of the Solar Atmosphere

   • Cornelis De Jager

   Pages 129-154

10. Fundamental Spectroscopic Data

    • Cornelis De Jager

    Pages 155-177

11. Phiysical Study of Comets

    • Cornelis De Jager

    Pages 179-190

12. Physical Study of Planets and Satellites

    • Cornelis De Jager

    Pages 191-201

13. The Moon

    • Cornelis De Jager

    Pages 203-214

14. Rotation of the Earth

    • Cornelis De Jager

    Pages 215-224

15. Positions and Motions of Minor Planets, Comets and Satellites

    • Cornelis De Jager

    Pages 225-239

16. Light of the Night-Sky

    • Cornelis De Jager

    Pages 241-252

17. Meteors and Meteorites

    • Cornelis De Jager

    Pages 253-273

18. Photographic Astrometry

    • Cornelis De Jager

    Pages 275-283

19. Stellar Photometry

    • Cornelis De Jager

    Pages 285-295

20. Étoiles Doubles

    • Cornelis De Jager

    Pages 297-311

This volume contains the fifteenth tri-annual reports of the Presidents of the forty Commissions of the International Astronomical Union; it refers to the progress in our discipline during the three years 1970, 1971 and 1972. As compared to earlier volumes a gradual change in character is unmistakable. The ever increasing flow of publications, combined with the obvious necessity to keep the Reports at a reasonable size and price level has gradually forced the Commission Presidents to be more selective than before in drafting their Reports. I have certainly stimulated them into that direction - in order that Reports like these be valuable and lasting, it seems imperative that the individual contributions have the character of a critical overall review, where a fairly complete summary is given of the major develop­ ments and discoveries of the past three years, and in which the broad developments and new trends be clearly outlined, while at the same time essential problems for future research are identified. With respect to the latter item I have suggested the Commission Presidents to add to their reports a brief section on scientific priorities for future research in the field of their Commissions. In order to save space I have suggested to Commission Presidents that references to published papers are given on the basis of their number in the published issues of Astronomy and Astrophysics Abstracts. For instance, the indication (06. 078. 019) or (AAA 06. 078.

• Astrometry
• Astronomical Observation
• Celestial mechanics
• astronomy
• instruments
• positional astronomy

Policies and ethics