Daily Sunspot Evaluation
Observation Sheet Tuesday, 17 August 2004
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)
- 3
- Number of spots (f)
- 28
- Relative number (R)
- 58
- Observer
- MS
- Reading
- all checks consistent
- File
- 20040817.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKO – 4 | 6 | 28E | 347 | 27E | 8 | 151 |
| 2 | HA – 2 | 13 | 31E | 344 | 30E | ~0.5 | 152 |
| 3 | FKC – 22 | -12 | 71W | 86 | 72W | ~20 | 146 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.