Monthly Sunspot Observation Report
December 2009 Sunspot classification and coordinates →
0.00
Monthly mean R
1 / 31
Observation days (3%)
0
Maximum R
30
Days without observation
D: Day · T: Time (UT) · g: Number of groups · f: Number of spots · R: Relative number (10g+f) · Q: Seeing 1–5 · O: Observer · G: Assigned observer
Observers Observation days this month and mean observing times
| Observer | Days | Mean time (all) | Mean time (own duty days) |
|---|---|---|---|
| Sinan Aliş SA | 1 | 09:12 | --:-- |
| Month total | 1 – 30 | Observing window: 07:00 – 09:00 UT | |
Colour: black = within the window, green = up to 30 min late, purple = later.
The last twelve months Development of the daily and monthly mean relative number
Observation days (2009): 109 / 365 (30%)
Days without observation: 256
Consecutive days: 0 (longest 45)