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Log

PagePlateClassObjectR.A.DecStartObs H.A.Obs DecStopExpDateMiscellaneous
16319T123 00+15.019 45 59+15.019 55 59Sep 14 1908Secondary mirror has been resilvered. Adjusted position of mirror visually this P.M. Set on α Aquilae. Found HA index OK. Set Dec. Index. Circle East. Read Focus at 19 30. Temp = +57. 0.75 0.7 0.8 = Mean 0.75 + 15.2 = 15.95. After taking the above plates, found that strings stretching across the secondary mirror have not been removed. x 319 Read HA = 3 15 E at 19 45 00.
16Pole20 07 52+90.020 17 52Sep 14 1908
16320T1Pole20 18 2020 28 20Sep 14 1908x 320 Read HA = 4 45 E at 20 35 00. Read focus 1.05 at 21 35.+1.1 + 1.23 = 3.35 / 3 = 1.12. Temp = +51. Set on α Persei read focus at 0 20 S.T. temp. 47. 1.1 1.3 1.2 = Mean 1.2. 4 15 S.T. Set on faint star in Taurus. Focus 1.2 +1.3 +1.4 = Mean 1.3 Temp = 42. HA = 1h 02m at 4 20. [[Delta]]= +22.6.
161 20+45.020 37 17+45.020 47 17Sep 14 1908