Daily Sunspot Evaluation
Observation Sheet Wednesday, 28 June 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)
- 6
- Number of spots (f)
- 47
- Relative number (R)
- 107
- Observer
- AE
- Reading
- all checks consistent
- File
- 19670628.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 7 | 25 | 31E | 109 | |||
| 2 | A – 5 | -15 | 5W | 145 | |||
| 3 | B – 11 | -23 | 12W | 152 | |||
| 4 | H – 8 | -23 | 18W | 158 | |||
| 5 | H – 11 | 17 | 37W | 177 | |||
| 6 | A – 5 | 20 | 29W | 169 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.