Daily Sunspot Evaluation
Observation Sheet Saturday, 2 February 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)
- 78
- Relative number (R)
- 148
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800202.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HJA – 2 | 16 | 15W | 253 | 16W | 4 | |
| 2 | DAC – 10 | 5 | 15W | 253 | 16W | 5.5 | |
| 3 | EKA – 20 | 14 | 05E | 233 | 04E | 10.5 | |
| 4 | CAI – 4 | 13 | 15E | 223 | 14E | 3.5 | |
| 5 | DAO – 5 | 19 | 31E | 207 | 30E | 10 | |
| 6 | CAO – 5 | 17 | 45E | 193 | 44E | 2.5 | |
| 7 | FCC – 32 | -15 | 33E | 205 | 32E | 14.5 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.