Daily Sunspot Evaluation
Observation Sheet Sunday, 17 August 2003
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)
- 43
- Relative number (R)
- 103
- Observer
- MS
- Reading
- all checks consistent
- File
- 20030817.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | -19 | 45W | 213 | 47W | - | 232 |
| 2 | EAC – 34 | -11 | 31W | 199 | 33W | ~11 | 227 |
| 3 | DSO – 3 | -22 | 11W | 179 | 13W | ~4 | 229 |
| 4 | AX – 1 | -21 | 09E | 159 | 07E | - | 233 |
| 5 | HS – 1 | -3 | 25E | 143 | 23E | 0.5 | 230 |
| 6 | ? – 3 | 7 | 76E | 92 | 74E | ~12 | 234 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.