Daily Sunspot Evaluation
Observation Sheet Wednesday, 7 May 1969
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)
- 3
- Number of spots (f)
- 29
- Relative number (R)
- 59
- Observer
- AT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19690507.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 8 | -12 | 45E | 135 | |||
| 2 | E – 18 | -13 | 07E | 173 | |||
| 3 | A – 3 | -39 | 50E | 136 ⚠ |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.