Daily Sunspot Evaluation
Observation Sheet Sunday, 13 June 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)
- 4
- Number of spots (f)
- 9
- Relative number (R)
- 49
- Observer
- TÇ
- Reading
- all checks consistent
- File
- 20040613.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 4 | 11 | 80E | 77 | 77E | ? | 408 |
| 2 | HA – 1 | -10 | 60 | 157 | 03W | ~0.5 | 405 |
| 3 | HS – 1 | -12 | 36E | 121 | 33E | ~1.5 | 406 |
| 4 | BXO – 3 | -6 | 47E | 110 | 44E | 3 | 407 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.