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83
[[underlined]]March 3, 1906.[[/underlined]]
Exam. of plates to get range of variation of S Centauri CDM. -48° 7401 Ra 12 19 12 Dec. - 48° 53.2 (1900). Not in Alc, or Z.C. Type IV on B3416, 3445, and 7479. Astun, nach. [[underline]]123[[/underline]], Susp. indip by LDW. in 1899, and later conf by her in

[[3 column table]]
|Plate|Date [[strikethrough]]Ex[[/strikethrough]]|Ex.|Magn.|
|B 31603|May 4, 1903  |10  8.5|
|B 21610|June 10, 1898|10  9.5|
|B 19748|July 3, 1897 |11  8.5|
|B 29130|Feb 27, 1902 |10  9.0|
|B 21561|June 1, 1898 |12  9.2|
|B 24816|Mch. 1, 1900 |16  8 2|
|B 13652|June 6, 1892 |11  8.3|
|B  9634|June 22, 1893|10  8.6|
|B  5905|May 15, 1891 |11  9.0|
|B 33564|May 3, 1904  |10  8.5|
|B 33411|Apr. 20, 1904|10  8.8|
|B 29806|May 26, 1902 |10  8.4|
|B 24916|Mar. 31, 1900|62  8.3|
|B 23123|June 20, 1899|13  8.1|
|B 11427|June 15, 1894|-   8.7|
|B 25491|May 29, 1900 |60  8.3|
[[/3 column table]]

The 16 chart-plates examined show a range of about 14 magnitudes, the approx. limits being 8.1 to 95. This star is probably two or three magnitudes brighten visually
W.P.F. March 3, 1906.

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