Plaskett Report for December 1928

While much less rain fell during the month than is usual, there was considerable cloudy weather. On the whole it would appear to have been a month just a little above the average for observing. On 11 nights with 77.6 hours observing, 82 spectra were secured while the corresponding figures for the nine-year average for the month are 10 nights, 65.1 hours and 76 plates.

Approximately 273 persons visited the observatory during  the month

[J.A. Pearce was renamed as president of the Victoria Centre of the RASC, while C.S. Beals was named first vice-president, Ed.]

Mon, Dec 10, 1928 – 11 · Times Colonist (Victoria, British Columbia, Canada) ·

Director J. S. Plaskett obtained 9 spectrograms on two nights. Measured 44 spectrograms for radial velocity. Compiling velocities of B stars and preparing for discussion. Usual administrative work and correspondence

Assistant Director W. E. Harper worked 3 nights securing 21 plates. Measured for radial velocity 38 plates. Prepared article for ‘Scientia’. Checking over velocities secured for A-type stars.

Astronomer J. A. Pearce obtained 27 spectrograms on three nights. Measured for radial velocity 21 spectrograms. Reviewed Dr. C. A. Chant’s book “Our Wonderful Universe”. Gave one seminar talk on ‘High Velocity Stars. Worked on statistics of class B stars.

Astronomer C. S. Beals obtained 8 plates working one night. Determined absolute wave-lengths in bands of 3 Wolf-Rayet stars. Collected and wrote update on classification of Wolf Rayet stars. Constructed and tested a 6 plate condenser for use with laboratory spectrograph.

Astronomer R. O. Redman obtained 17 plates on 2 nights, 2 of Y Cygni, 4 for standards on spectrocomparator., 5 for the B and 6 for the K programme. 24 plates measured, chiefly remeasures of Y Cygni. Papers by Oort, Plaskett and Lindblad on the galactic rotation have been read. Gave one seminar talk.

Computer S. N. Hill did computational work with reference to Solar Motion and K term of B-type stars.

Clerk-Stenographer Miss L. M. Blake did the envelopes for spectrograms, usual correspondence, accounts, reports, etc.

Instrument Maker Foreman T. T. Hutchison assisted in observing on 7 nights. Cleaned and oiled measuring machines and kept telescope in running order