Daily Sunspot Evaluation
Observation Sheet Thursday, 3 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)
- 59
- Relative number (R)
- 129
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800703.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BAX – 2 | 18 | 37W | 70 | 40W | 1.5 | |
| 2 | BAC – 19 | 29 | 06E | 27 | 03E | 8.5 | |
| 3 | BXO – 6 | -14 | 42E | 351 | 39E | 8 | |
| 4 | AXX – 1 | -3 | 55E | 338 | 52E | - | |
| 5 | CAI – 7 | -22 | 74W | 107 | 77W | 8 | |
| 6 | DAC – 12 | -10 | 56W | 89 | 54W | 11 | |
| 7 | DSI – 12 | -19 | 27W | 60 | 30W | 7 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.