Daily Sunspot Evaluation
Observation Sheet Saturday, 15 August 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)
- 32
- Relative number (R)
- 92
- Observer
- HE
- Reading
- all checks consistent
- File
- 19980815.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HK – 9 | 31 | 32W | 207 | 34W | 7 | 166 |
| 2 | DKC – 18 | 16 | 18W | 193 | 20W | 11.7 | 169 |
| 3 | AX – 1 | 18 | 46E | 129 | 46E | - | 174 |
| 4 | AX – 1 | 18 | 73E | 102 | 71E | - | 180 |
| 5 | ISO – 2 | -21 | 05E | 170 | 05E | 12.5 | 171 |
| 6 | ? – 1 | -31 | 74E | 101 | 72E | 3 | 181 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.