Daily Sunspot Evaluation
Observation Sheet Saturday, 23 August 1980
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)
- 10
- Number of spots (f)
- 93
- Relative number (R)
- 193
- Observer
- TÖ
- Reading
- all checks consistent
- File
- 19800823.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BRO – 4 | 17 | 62W | 141 | 65W | 6.75 | |
| 2 | HAX – 2 | 9 | 57W | 136 | 60W | 1.5 | |
| 3 | EKC – 61 | 20 | 29W | 108 | 32W | 15 | |
| 4 | HRX – 6 | 15 | 08E | 71 | 05E | 2.5 | |
| 5 | AXX – 4 | 23 | 22E | 57 | 19E | 2 | |
| 6 | HKX – 6 | 11 | 44E | 35 | 41E | 7 | |
| 7 | AXX – 1 | 20 | 61E | 18 | 58E | ||
| 8 | ? – 1 | -21 | 74W | 153 | 77W | ||
| 9 | HAX – 4 | -8 | 71W | 150 | 74W | 5.75 | |
| 10 | BXO – 4 | -16 | 61E | 18 | 58E | 2 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.