Plaskett Report for October 1923

The weather during October remained somewhat above average and 94 spectrograms were obtained on 16 nights. The dome was opened and exposures started on 3 other nights but broken clouds prevented any useful spectrograms being obtained. Satisfactory progress was made during the month towards the completion of two major pieces of work, absolute magnitudes of 1100 stars and the radial velocities of the O-type stars.

[Dr. Ambrose Swasey of Warner & Swasey Co., who built the telescope and dome, visited Victoria in October 1923, Ed.]

Mon, Oct 15, 1923 – 18 · The Victoria Daily Times (Victoria, British Columbia, Canada) ·

[An ad calling for tenders to build the new office building appeared the October 10, 1923 Victoria Daily Times, Ed.]

Wed, Oct 10, 1923 – 14 · The Victoria Daily Times (Victoria, British Columbia, Canada) ·

Director J. S. Plaskett obtained 12 spectra on 4 nights mostly long exposure ones. Measured and remeasured about 30 plates for radial velocity, Preparing radial velocity of O-type stars for publication. Prepared paper on California visit and preparing paper on stationary calcium lines. Usual correspondence and administrative work.

Research Astronomer W. E. Harper obtained 43 spectrograms on 4 nights. Spent his day hours on revising table for absolute magnitude of standard stars.

Astronomer R. K. Young obtained 22 spectrograms on 3 nights. Completed measurement of all Boss stars for absolute magnitude and made a start on the HR stars. Prepared a manuscript on the results of the Canadian eclipse expedition to Australia for publication.

Astronomer H. H. Plaskett obtained 9 spectrograms of long exposure on nebulae on 5 nights. Measured and reduced spectra in blue and red of Z Andromedae and determined the size of the envelope on the star. Prepared answer to question on relativity.

Clerk-Stenographer Miss H. R. Keay handled the usual correspondence, accounts, reports and plates. She ruled several hundred cards and copied absolute magnitude data on same. She corrected the proof of Volume II, Numbers 13 and 14, and typed two articles for publication.