Viewing page 164 of 241

This transcription has been completed. Contact us with corrections.

151

March 25, 1907

Exam. of plates for estimates of magns. of new variable Sp. Mc5d^[[var?]] on I 32998 No. 5927. [[strikethrough]]April, 1905).[[/strikethrough]] March 2,1906. 
W.P.F.     +57° 1786 17^[[h]] 34.6^[[m]]+57° 49'.9 9.3 (1855).
                     17 35.4+57 48 (1900).

[[4 columned table]]
|Plate|Date [[strikethrough]]Ex.[[/strikethrough]]|Ex.|Est.|
|-----|----|---|----|
|✓I 29360|Oct. 10,✓ 1902|13|8.5|
|I 27442|Sept. 7, 1901|15|9.2|
|I 2[[strikethrough]]7[[/strikethrough]]0736|April 21 1898|10|9.6|
|I 18739|Sept. 9 1897|12|9.7|
|I 918[[strikethrough]]6[[/strikethrough]]1|Aug. 11 1893|[[strikethrough]]90[[/strikethrough]]19|9.6|
|I 23165|July 14 1899|28|8.1|
|✓I 6744|Aug. 17✓ 1892✓|15|9.0|
|I 23331|Aug. 15 1899|13|8.4|
|I 29253|Sept. 10 1902|12|8.3|
|I 20783|May 14 1898|18|8.4|
|I 20498|March 14 1898|20|9.4|
|I 20828|June 7 1898|30|9.4|
|I 23180|July 18 1899|10|8.0|
|I 15628|Aug. 8 1896|10|9.2|
|I 1875[[strikethrough]]5[[/strikethrough]]4|Sept. 11 1897|14|9.4|
|I 15795|Aug. 28. 1896|11|9.3|
|I 2065[[strikethrough]]9[[/strikethrough]]7|April 7 1898|15|9.4|
|I 21506|Oct. 25 1898|10|9.3|
|I 20841|June 9 1898|15|9.2|
|I 21511|Oct. 27 1898|15|9.2|
|I 13551|Sept. 30 1895|12|9.3✓|

An examination of the above plates gives a variation of about 1.7 magnitude.  Est. limits 8.0 to 9.7.  The variability has been confirmed independently by L.D. Wells and by E.C. Pickering.     W.P.F.

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