Daily Sunspot Evaluation
Observation Sheet Friday, 24 July 1992
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)
- 5
- Number of spots (f)
- 15
- Relative number (R)
- 65
- Observer
- YK
- Reading
- all checks consistent
- File
- 19920724.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXO – 4 | 5 | 54W | 279 | 58W | 4.5 | 281 |
| 2 | BXI – 7 | 19 | 21W | 246 | 24W | 3.5 | 277 |
| 3 | AX – 1 | 18 | 17W | 242 | 20W | - | 283 |
| 4 | AX – 2 | -4 | 76W | 301 | 79W | 1 | 278 |
| 5 | ? – 1 | -20 | 74E | 148 | 74E | - | 282 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.