Daily Sunspot Evaluation
Observation Sheet Friday, 23 July 1993
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)
- 23
- Relative number (R)
- 83
- Observer
- YK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19930723.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAO – 4 | 9 | 24W | 620 ⚠ | 22W | 4 | 186 |
| 2 | HA – 1 | 14 | 78E | 21 ⚠ | 77E | 2 | 191 |
| 3 | HS – 1 | -11 | 08W | 607 ⚠ | 09W | 2 | 187 |
| 4 | CAO – 7 | -20 | 8W | 602 ⚠ | 04W | 4 | 188 |
| 5 | BXI – 9 | -9 | 67E | 82 ⚠ | 66E | 4 | 190 |
| 6 | AX – 1 | -13 | 67E | 32 ⚠ | 66E | 0.5 | 192 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.