Z UMa, observer - Anatolij Shestenko-Chistiakov, Arzamas (Russia). Visual observations by using 80/800 mm refractor. J.D. mag. 50896.417 8.40 : 50897.281 8.20 50898.299 8.21 50899.326 8.19 50901.292 8.16 50902.354 8.13 50906.267 8.10 50907.257 8.08 50908.299 8.06 : 50909.302 8.04 : 50915.309 7.92 : 50919.323 7.86 50920.319 7.84 50925.299 7.66 50926.285 7.64 50931.285 7.49 50932.278 7.55 : 50934.295 7.57 50936.323 7.47 : 50938.323 7.59 : 50940.337 7.40 50951.354 7.20 : 50952.375 7.07 50953.323 6.97 50954.347 6.96 50958.347 7.02 50960.340 7.00 50965.354 7.02 50968.340 7.00 : 50969.319 7.00 : 50970.396 7.01 51017.385 7.70 51019.389 7.76 51022.379 7.68 51023.375 7.70 51024.354 7.65 51025.354 7.61 51026.368 7.65 : 51033.396 7.61 : 51043.302 7.76 51044.351 7.80 51046.309 7.80 51047.285 7.83 51048.392 7.84 : 51065.263 8.18 51067.239 8.18 51070.278 8.22 51071.302 8.23 51075.451 8.45 : 51076.177 8.38 51077.219 8.3 51083.347 8.53 : 51134.156 7.32 51138.229 7.32 : 51139.313 7.36 51146.302 7.28 51147.260 7.33 51148.347 7.28 51149.301 7.31 51172.263 7.73 : 51189.403 7.87 51190.372 7.85 51191.333 7.87 51223.392 7.68 51229.285 7.64 : 51233.295 7.60 : 51245.227 7.68 51246.299 7.70 51247.257 7.73 51247.299 7.77 51248.236 7.78 51250.226 7.8 51251.267 7.83 51252.229 7.84 51253.278 7.87 : 51258.326 8.19 51260.250 8.2 51265.326 8.29 51266.247 8.55 : 51267.295 8.44 : 51268.330 8.60 : 51270.240 8.60 51271.319 8.62 51274.295 8.70 51275.267 8.73 51276.292 8.74 51284.306 8.75 51285.271 8.76 51286.299 8.80 51287.313 8.76 51288.309 8.76 51289.295 8.76 51290.365 8.78 51291.285 8.74 51292.313 8.73 51293.337 8.72 51294.354 8.71 51295.354 8.70 : 51305.306 8.18 51312.382 7.80 : 51315.368 7.40 51318.344 7.36 51320.333 7.08 51323.344 7.02 : 51324.340 7.07 51328.385 6.79 51332.358 6.66 51333.403 6.62 51334.413 6.64 51340.375 6.78 51366.375 8.00 : 51374.361 8.10 51381.385 8.12 51382.389 8.15 51383.361 8.12 : 51386.326 8.11 51397.319 7.53 : 51398.358 7.56 51399.344 7.33 51405.403 7.06 51406.399 7.08 51407.330 7.09 51408.306 7.09 : 51409.295 6.99 51413.337 6.99 51417.274 6.90 51423.333 7.07 51426.319 7.36 51427.319 7.30 51428.347 7.44 51429.378 7.40 : 51430.236 7.40 51436.323 7.87 51440.263 8.10 : 51454.188 8.80 : 51455.288 8.67 51456.285 8.68 : 51460.274 8.75 51461.167 8.85 51466.174 8.88 51468.396 8.77 : 51472.299 8.80 : 51478.440 8.67 51480.402 8.67 51481.402 8.46 51482.323 8.44 51489.281 8.00 : 51491.302 7.80 51493.448 7.90 51497.493 7.76 51498.146 7.73 51501.399 7.77 51516.292 7.40 51518.420 7.35 51519.417 7.38 51522.260 7.30 51532.427 7.30 : 51536.146 7.30 : 51537.379 7.28 51538.263 7.36 51539.292 7.40 51570.285 8.17 : 51570.583 8.15 : 51576.271 8.18 : 51600.271 7.79 51602.396 7.77 51604.389 7.80 51611.250 7.79 51614.392 7.77 51616.257 7.90 : 51624.392 7.90 : 51625.319 8.00 : 51627.306 7.89 51628.385 8.06 : 51629.302 8.13 51630.302 8.12 51632.326 8.17 51633.271 8.19 51635.347 8.20 51637.306 8.21 51641.285 8.38 51643.417 8.38 51644.292 8.38 51645.292 8.48 51647.361 8.36 : 51650.319 8.42 : 51652.292 8.38 : 51655.313 8.60 51658.313 8.69 51659.313 8.72 51660.354 8.72 51662.354 8.90 51663.389 8.92 51665.333 8.94 51668.333 8.95 51670.361 8.92 51671.347 8.95 51676.375 8.95 : 51686.333 8.38 51687.375 8.36