Daily Sunspot Evaluation
Observation Sheet Wednesday, 13 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)
- 9
- Number of spots (f)
- 49
- Relative number (R)
- 139
- Observer
- ıH
- Reading
- all checks consistent
- File
- 20020313.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 8 | 19 | 01E | 217 | 01E | ~7.5 | |
| 2 | HA – 5 | 20 | 16E | 202 | 16E | 2 | |
| 3 | HA – 1 | -11 | 59W | 277 | 59W | 1 | |
| 4 | HS – 2 | -4 | 52W | 270 | 52W | ~2.5 | |
| 5 | EKI – 27 | -10 | 28E | 190 | 28E | 13 | |
| 6 | HS – 1 | -20 | 39E | 179 | 39E | 2 | |
| 7 | HS – 1 | -18 | 49E | 169 | 49E | 1 | |
| 8 | AX – 1 | -22 | 73E | 145 | 73E | - | |
| 9 | ? – 3 | -19 | 80E | 138 | 80E | ? |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.