Daily Sunspot Evaluation
Observation Sheet Sunday, 12 May 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)
- 68
- Relative number (R)
- 158
- Observer
- AK0
- Reading
- all checks consistent
- File
- 20020512.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 18 | 72W | 219 | 73W | ||
| 2 | CSO – 3 | 18 | 32W | 179 | 33W | ||
| 3 | HA – 10 | -8 | 43W | 190 | 44W | ||
| 4 | AX – 2 | -6 | 40W | 187 | 41W | ||
| 5 | DAO – 6 | -16 | 13W | 160 | 14W | ||
| 6 | PHO – 15 | -4 | 14E | 131 | 13E | ||
| 7 | CAO – 7 | -6 | 37E | 110 | 36E | ||
| 8 | EHO – 6 | -21 | 59E | 87 | 58E | ||
| 9 | EXC – 18 | -17 | 64W | 211 | 65W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.