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Commission 20. (Minor Planets, Comets and Satellites)

Published online by Cambridge University Press:  25 April 2016

Extract

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I. ‘Joint meeting of Commissions 6 and 20 on Thursday morning, July 11.

The cipher code for astronomical telegrams (relating to the description of objects and other matters) proposed by the President of Commission 6 (Prof. Strömgren) was discussed and accepted, with minor alterations. (See report Of meeting of Commission 6, page 289; also the cipher code adopted, page 391.)

2. Joint meeting of Commissions 4, 8 and 20 on Thursday afternoon, July 11. (See also reports of meetings of Commissions 4 and 8, pages 281 and 290.)

The proposals of Noumerov (Leningrad) and Brouwer for the determination of systematic corrections to star positions from observations of minor planets were discussed, and the following resolution passed for action by the General Assembly. “Commissions 4, 8 and 20 recommend that the programme of M. Noumerov for the determination of systematic corrections to star positions from observations of minor planets and the similar programme advanced by Mr Brouwer be encouraged as being of great importance, but that the formation of a subcommittee of one of the existing commissions or of an independent commission for the co-ordination of the two programmes and the promotion of international co-operation of observatories and planet institutes or almanac offices be deferred pending the outcome of the experimental stages of the two programmes.”

Type
Part III: Meetings Of Commissions
Copyright
Copyright © Cambridge University Press 1936

References

page no 309 note * For the final form of the resolutions see report of meeting of Commission 4, p. 283.

page no 322 note * The foregoing report contained as an appendix a complete tabulation for each of the 170 planets of the number of oppositions used in the correction of the elements; the period over which these oppositions extended; the maximum outstanding residual in the sense observation minus computation; the source of the basic elements; the reference to the journal in which the elements are published; and the year from which the corrected elements were adopted by the Rechen-Institut in Kleine Planeten. Another tabulation gives the list of the 500 planets for which approximate general perturbations have been computed by the Gylden-Brendel method with a reference to the journal in which the perturbations have been published. It is planned to combine these data with similar results concerning general perturbations in a comprehensive tabulation prior to the next meeting of the Union.—A. O. L.

page no 324 note * A statistical summary covering the period under consideration by years shows that 1330 (1009 precise, 321 approximate) positions were secured of the 223 new planets and 2075 (323 precise, 1752 approximate) positions of known planets, a total of 3405. The 1318 plates do not include those taken in 1931 for Eros.—A. O. L.

page no 325 note * The figures in parentheses have been inserted from the Russian text; those in (1) and (2) are totals and those in (3), (6) and (7) means for the 22 years.—A. O. L.