Daily Sunspot Evaluation
Observation Sheet Sunday, 24 July 1983
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)
- 73
- Relative number (R)
- 163
- Observer
- TS
- Reading
- all checks consistent
- File
- 19830724.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 2 | 13 | 65W | 128 | 69W | 3.0 | 197 |
| 2 | EKI – 16 | 107 | 33W | 96 | 37W | 13 | 211 |
| 3 | AXX – 1 | 21 | 24W | 87 | 28W | 213 | |
| 4 | BRI – 21 | 10 | 21W | 84 | 25W | 4 | 207 |
| 5 | ? – 3 | -6 | 76W | 139 | 80W | 11 | 205 |
| 6 | AXX – 2 | -6 | 57W | 120 | 61W | 15 | 217 |
| 7 | CAI – 23 | -6 | 35W | 98 | 39W | 8 | 212 |
| 8 | AXX – 3 | -9 | 24W | 87 | 28W | 25 | 215 |
| 9 | RXO – 2 | -8 | 34E | 29 | 30E | 5 | 215 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.