Daily Sunspot Evaluation
Observation Sheet Thursday, 20 March 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)
- 3
- Number of spots (f)
- 10
- Relative number (R)
- 40
- Observer
- TG
- Reading
- all checks consistent
- File
- 20030320.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HR – 2 | 4 | 11E | 339 | 09E | 2 | 65 |
| 2 | FAC – 7 | -17 | 70W | 60 | 72W | ~17 | 63 |
| 3 | HS – 1 | -11 | 47E | 303 | 45E | 1 | 64 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.