Plaskett Report for June 1929

The weather was away below the average for observing during the month. On 17 nights 50 plates were secured with a total observing time of 78.5 hours. The ten-year average for the month shows 20 nights, 128 plates with total exposure time of 91.3 hours.

The new grating spectrograph was received and installed during the month

Approximately 4,444 persons visited the observatory during the month.

Director J. S. Plaskett was completing preliminary discussion of B type stars for galactic rotation and K term and preparing tables for slides. Attending Berkeley meeting of AAAS and visiting Mt. Wilson and Lick Observatories June 9-27th. Usual correspondence, etc.

[Plaskett and his wife left Victoria on June 9, 1930 for the AAAS meeting in Berkeley, Ed.]

Mon, Jun 10, 1929 – 6 · The Victoria Daily Times (Victoria, British Columbia, Canada) ·

[J. S. Plaskett is the 3rd from left in the back row in this image shows some of the delegates to the AAAS meeting in 1929., Ed.]

Wed, Jun 19, 1929 – Page 21 · Oakland Tribune (Oakland, California) ·

Assistant Director W. E. Harper worked 3 nights securing 12 plates. Measured for radial velocity 35. Spent some time reading and gave one seminar talk.

Astronomer J. A. Pearce measured 5 plates for radial velocity. Prepared 18 pages of tables for Observer’s Handbook. Prepared radial velocity results for publication.

Astronomer C. S. Beals worked 3 nights, obtained 4 plates in visible region of Wolf Rayet stars. Measured the band spectrum of Nova Cygni. Set up and focussed new grating spectrograph. Worked on paper on Wolf Rayet stars.

Computer S. N. Hill spent time writing orbit of 103 Tauri for publication. Computational and other related work on B-type stars.

Assistant Astronomer R. O. Redman owing to continued bad weather work could be done on only 3 nights. 8 plates were obtained and 33 measured for the regular K programme. 12 spectra on 6 plates of standard bright K stars were photographed and measured to check the accuracy of the programme work. Results were satisfactory. Gave one seminar talk.

Assistant Astronomer A. Pannekoek worked 5 nights, obtaining 10 spectra with III prism M camera. Made experiments with different light sources on standardizing spectra. Made theoretical studies on absorption lines in stellar spectra. and stellar atmospheres.

Summer Assistant P. M. Millman reported for duty June 11. Worked 3 nights securing 10 plates.. Checking up measures and testing probable periods of last year’s binaries. Plotting fields of faint B stars for observation.

Clerk-Stenographer L. M. Blake handled the accounts, correspondence, reports and library assistance. Typed radio and seminar talks. Assisted with tables for Observer’s Handbook and typed same.

Instrument Maker Foreman T. T. Hutchison assisted in observing 9½ nights and kept telescope in running order.