Daily Sunspot Evaluation
Observation Sheet Saturday, 9 March 2002
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)
- 7
- Number of spots (f)
- 25
- Relative number (R)
- 95
- Observer
- HE
- Reading
- all checks consistent
- File
- 20020309.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 3 | 17 | 52E | 221 | 50E | 3 | 47 |
| 2 | HR – 1 | 13 | 66E | 207 | 64E | 1 | |
| 3 | DAO – 7 | -6 | 45W | 318 | 47W | 6 | |
| 4 | HR – 1 | -23 | 18W | 291 | 20W | ||
| 5 | DAO – 9 | -11 | 11W | 284 | 13W | 5.5 | |
| 6 | HS – 2 | -4 | 03E | 270 | 01E | 3.5 | 93 |
| 7 | ? – 2 | -11 | 80E | 193 | 78E | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.