Daily Sunspot Evaluation
Observation Sheet Tuesday, 26 July 1988
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)
- 20
- Relative number (R)
- 60
- Observer
- FL
- Reading
- all checks consistent
- File
- 19880726.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 2 | 12 | 32E | 10 | 29E | 6.5 | 152 |
| 2 | AX – 2 | 13 | 51E | 351 | 48E | 0.5 | 158 |
| 3 | AR – 1 | -22 | 64W | 106 | 67W | 1 | 142,5 |
| 4 | DKI – 15 | -23 | 40E | 2 | 37E | 9.5 | 156 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.