Observation Star Summary for S Johnston

Total observations:13,073Number of uploaded data files:579
First observation:JD 2450685.411800\24 Aug 1997 21:53:00 UTLatest observation:JD 2457904.579590\31 May 2017 01:54:37 UT
Observation MethodNumber of Observations
CCD10,845
Visual2,228

Summary by Year and Month

Summary by Stars