Daily Sunspot Evaluation
Observation Sheet Wednesday, 11 May 1988
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)
- 6
- Number of spots (f)
- 33
- Relative number (R)
- 93
- Observer
- FL
- Reading
- counts consistent, some coordinates doubtful
- File
- 19880511.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AR – 4 | 20 | 37W | 5 | 40W | 2 | 93 |
| 2 | AR – 5 | 14 | 30W | 358 | 33W | 3 | 100 |
| 3 | HA – 2 | 18 | 09W | 332 ⚠ | 07W | 1.5 | 91 |
| 4 | AR – 4 | 12 | 35E | 293 | 32E | 1.5 | 98 |
| 5 | ? – 2 | -28 | 72W | 40 | 75W | 2 | 94 |
| 6 | DAE – 16 | -17 | 04E | 324 | 01E | 10 | 95 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.