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168

[[underlined]] September 25, 1907. [[/underlined]]

Exam. of Plates to record confirmation of variability of star in R.A. 12^[[h]] 0.0^[[m]]. Dec. +12° 56' (1900). Spectra Md. on A7726. Variability confirmed by Mrs. Draper and E.C. Pickering on May 20, 1907. Found by W.P.F. April 8, 1907.

[[4 columned table]]
|Plate|Date|Ex.|Est.|
|---|---|---|---|
|[[strikethrough]]Sp. A 7726[[/strikethrough]]|June 14, 1906|180|9.2|Md5.|
|A6367|May 14, 1903|10|11.5|[[underlined]]F[[/underlined]]|
|I33061|May 9, 1905|28|8.[[strikethrough]]4[[/strikethrough]]6|   |
|I20698|April 16, 1898|12|8.5|   |
|I17728|March 31, 1897|22|9.5|   |
|I222[[strikethrough]]9[[/strikethrough]]26|January 25, 1899|11|11.4|   |
|✓I3485|April 25, 1891|13|10.4|   |
|A6718|May 7, 1904|240|12.5|   |
|I20586|April 1, 1898|13|[[strikethrough]]8.6[[/strikethrough]]10.1|   |
|I24629|February 19, 1900|31|8.6|   |
|I25055|April 6, 1900|38|<11|   |
|I30354|April 21, 1903|13|<11|   |
|I8386|April 9, 1893|15|[[strikethrough]]<1[[/strikethrough]]11.2|   |
|I6165|April 25, 1892|16|<11.5|   |
|I2[[strikethrough]]0[[/strikethrough]]6901|April 26, 1901|31|8.6|   |


An examination of the above (14) chart plates shows a variation of about 4.0 magns., limits 8.5 to 12.5
W.P.F. Sept. 25, 1907.

John C. Wolbach Library, Harvard-Smithsonian Center for Astrophysics. Provided by the NASA Astrophysics Data Systems

Transcription Notes:
✓=Unicode 2713