Daily Sunspot Evaluation
Observation Sheet Monday, 17 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)
- 44
- Relative number (R)
- 104
- Observer
- NA
- Reading
- all checks consistent
- File
- 19980817.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HH – 4 | 24 | 57W | 206 | 60W | 6 | 166 |
| 2 | EKC – 19 | 17 | 43W | 192 | 46W | 15 | 169 |
| 3 | HS – 1 | 27 | 66E | 83 | 63E | 2 | 182 |
| 4 | ESO – 5 | -22 | 20W | 169 | 23W | 12 | 171 |
| 5 | CSO – 11 | -26 | 06W | 155 | 09W | 7 | 129 |
| 6 | CSO – 4 | -31 | 55E | 94 | 52E | 15 | 181 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.