Daily Sunspot Evaluation
Observation Sheet Thursday, 11 May 1967
There is no typed record for this day. The values below were read by computer from the table on the sheet; when in doubt, see the drawing. Details →
- Number of groups (g)
- 4
- Number of spots (f)
- 14
- Relative number (R)
- 54
- Observer
- —
- Reading
- all checks consistent
- File
- 19670511.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 1 | 22 | 59E | 330 | |||
| 2 | ? – 1 | -15 | 85E | 304 | |||
| 3 | C – 11 | -24 | 28E | 1 | |||
| 4 | ? – 1 | 22 | 75W | 104 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.