Daily Sunspot Evaluation
Observation Sheet Saturday, 11 July 1998
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)
- 23
- Relative number (R)
- 83
- Observer
- TA
- Reading
- all checks consistent
- File
- 19980711.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 2 | 17 | 62W | 340 | 65W | 2 | 128 125 |
| 2 | AX – 1 | 29 | 62W | 340 | 65W | - | 135 140 184 |
| 3 | HR – 3 | 17 | 67E | 211 | 64E | 3 | 135 182 |
| 4 | CAO – 4 | -22 | 64W | 342 | 67W | 5 | 129 126 |
| 5 | DRI – 12 | -21 | 62E | 216 | 59E | 6.5 | 132 135 186 |
| 6 | AX – 1 | -11 | 73E | 205 | 70E | - | 110 141 188 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.