Daily Sunspot Evaluation
Observation Sheet Monday, 24 June 1991
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)
- 11
- Number of spots (f)
- 37
- Relative number (R)
- 147
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19910624.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | 8 | 40W | 92 | 42W | 2 | 302 |
| 2 | CAI – 11 | 15 | 32W | 84 | 34W | 8.5 | 313 |
| 3 | HA – 5 | 23 | 03E | 49 | 01E | 3 | 310 |
| 4 | HA – 4 | 6 | 59E | 353 | 57E | 2.5 | 324 |
| 5 | ? – 1 | 3 | 82E | 330 | 80E | 4 | 325 |
| 6 | ? – 3 | -13 | 72W | 124 | 74W | 5 | 320 |
| 7 | DAO – 2 | -28 | 47W | 99 | 49W | 6.5 | 317 |
| 8 | HA – 4 | -15 | 06W | 58 | 08W | 2 | 314 |
| 9 | AX – 1 | -24 | 35E | 17 | 33E | - | 313 |
| 10 | AX – 3 | -12 | 58E | 354 | 56E | 1 | 322 |
| 11 | BXO – 2 | -7 | 69E | 343 | 67E | 3.5 | 323 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.