Plaskett Report for November 1926

There were 6 good nights during the month for observing when 127 plates were secured and 4 nights when 11 more plates were secured making a total of 138 for the month. The average for the month for seven years is 97 so the month was considerably better than usual.

[A fascinating article appeared in the Victoria Daily Times about sending a rocket to the Moon from outside Victoria, Ed]

Thu, Nov 18, 1926 – 9 · Times Colonist (Victoria, British Columbia, Canada) ·

Director J. S. Plaskett obtained 29 spectrograms on two nights and measured 60 spectrograms for radial velocity. Obtained preliminary elements of HD 193536. Designed short-focus camera fr spectrograph. Handled the usual correspondence and administrative work.

Assistant Director W. E. Harper worked 5 nights securing 51 spectra. He measured 32 plates for radial velocity. Determined the orbit of β Scuti and wrote up for publication. Silvered the secondary mirror. About a quarter of his office time devoted to least-squares solutions of Boss 3511.

Research Astronomer H. H. Plaskett worked part of 1 night obtaining 1 underexposed spectrum. Some work on Z Andromedae, but most of the time spent on band spectra. Article on the practical value of astrophysics for Natural Resources.

Assistant Astronomer J. A. Pearce observed on 4 nights and obtained 47 spectrograms. He measured 41 spectrograms for radial velocity. Measured 47 spectrograms of Boss 4870 and 5150 for the velocity of calcium lines H and K. Prepared and gave a radio talk. Prepared an article for Natural Resources. Handled the usual clock corrections and mixing of chemicals.

Astronomical Computer S. N. Hill worked on a least-squares solution of spectroscopic binary HD 214240. Work in connection with the library.

Temporary Assistant A. E. Johns spent time reading up literature on changes in binary orbits and making least-squares solutions of Boss 3511 for different years., with a view to getting the changes in its elements.

Senior Clerk Typist Miss H. R. Keay handled the usual accounts, correspondence, plates and reports. Typed two binary orbits for Mr. Harper, two for Mr. Petrie and one for Mr. Hill. Other astronomical typing and work filing reprints.

Instrument Maker Foreman T. T. Hutchison assisted in observing on 5 nights. Making repairs to dome and levelling dome track.