Sunspot Observation
Nayoro Observatory
128mm Refractor  Canon EOS7D Herschel Prism+G540nm Filter
Observer  Fumitake Watanabe
Feb,2018
Date Time(UT)   North     South     Total   Seeing memo
Day h m g f R g f R g f R    
1 03 27 0 0 0 0 0 0 0 0 0 2  
2 03 36 0 0 0 0 0 0 0 0 0 3  
3 03 27 0 0 0 0 0 0 0 0 0 1  
4                          
5                          
6 03 30 0 0 0 1 5 15 1 5 15 3  
7                          
8                          
9                          
10                          
11                          
12                          
13                          
14                          
15                          
16 05 13 0 0 0 1 3 13 1 3 13 2  
17                          
18                          
19                          
20                          
21                          
22                          
23                          
24                          
25                          
26                          
27                          
28 03 31 0 0 0 1 3 13 1 3 13 2  
  Total 0 0 0 3 11 41 3 11 41   R=k(10g+f)
  Mean     0.0     6.8     6.8   k=1
  obs day 6