Daily Sunspot Evaluation
Observation Sheet Wednesday, 19 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)
- 9
- Number of spots (f)
- 29
- Relative number (R)
- 119
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 19980819.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 32 | 87W | 209 | 39W | ? | 166 |
| 2 | DKI – 5 | 16 | 76W | 196 | 76W | 8 | 162 |
| 3 | BXI – 7 | 20 | 05W | 127 | 7W | 4 | 177 |
| 4 | HA – 2 | 27 | 40E | 82 | 38E | 1 | 182 |
| 5 | H? – 3 | 31 | 83E | 39 | 81E | - | 184 |
| 6 | HS – 2 | -22 | 52W | 174 | 54E | 2 | 171 |
| 7 | AX – 2 | -26 | 38W | 160 | 40E | 0.5 | 173 |
| 8 | CSO – 5 | -31 | 28E | 94 | 26E | 13 | 181 |
| 9 | HS – 2 | -23 | 70E | 52 | 68E | 3.5 | 183 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.