Daily Sunspot Evaluation
Observation Sheet Friday, 11 May 2001
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)
- 34
- Relative number (R)
- 104
- Observer
- AK0
- Reading
- all checks consistent
- File
- 20010511.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 22 | 48W | 348 | 51W | 2 | |
| 2 | BXO – 2 | 6 | 19E | 281 | 16E | 0.25 | |
| 3 | EKC – 11 | 13 | 69E | 231 | 66E | 12 | |
| 4 | HR – 3 | -16 | 38W | 338 | 41W | 3 | |
| 5 | HS – 6 | -22 | 03W | 303 | 06W | 4.5 | |
| 6 | HR – 1 | -10 | 24E | 276 | 21E | 0.5 | |
| 7 | DAC – 10 | -18 | 27E | 273 | 24E | 0.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.