Daily Sunspot Evaluation
Observation Sheet Wednesday, 9 July 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)
- 7
- Number of spots (f)
- 31
- Relative number (R)
- 101
- Observer
- OG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19800709.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DKO – 15 | 28 | 75W | 29 | 78W | 19 | |
| 2 | AKA – 2 | 23 | 34E | 210 ⚠ | 31E | 2 | |
| 3 | HEK – 4 | 18 | 34E | 280 | 31E | 7 | |
| 4 | DEO – 2 | 19 | 81E | 233 | 78E | 8 | |
| 5 | BAI – 4 | -15 | 38W | 352 | 41W | 35 | |
| 6 | HAK – 1 | -11 | 37E | 277 | 34E | 3 | |
| 7 | AKA – 3 | -15 | 40E | 274 | 37E | 15 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.