Daily Sunspot Evaluation
Observation Sheet Sunday, 19 September 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)
- 29
- Relative number (R)
- 59
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20040919.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 3 | 4 | 54W | 354 | 55W | 1.5 | 165 |
| 2 | BXO – 5 | 4 | 33W | 333 | 34W | 2 | 170 |
| 3 | DAO – 21 | -12 | 29E | 271 | 28E | 11 | 168 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.