Daily Sunspot Evaluation
Observation Sheet Sunday, 14 July 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)
- 9
- Number of spots (f)
- 139
- Relative number (R)
- 229
- Observer
- HE
- Reading
- all checks consistent
- File
- 19910714.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | EKI – 17 | 37 | 75W | 221 | 75W | 12 | 343 |
| 2 | HA – 14 | 12 | 63W | 211 | 65W | 5.5 | 350 |
| 3 | FKI – 40 | -24 | 16W | 164 | 16W | 18 | 358 |
| 4 | HA – 6 | -11 | 08E | 140 | 06E | 3 | 365 |
| 5 | EAI – 45 | -16 | 10E | 138 | 08E | 11 | 371 |
| 6 | AX – 2 | -11 | 12E | 136 | 10E | 1 | 373 |
| 7 | BAO – 6 | -5 | 41E | 107 | 39E | 5 | 376 |
| 8 | HK – 5 | -27 | 61E | 87 | 59E | 5 | 378 |
| 9 | ? – 4 | -23 | 83E | 65 | 81E | 380 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.