Daily Sunspot Evaluation
Observation Sheet Saturday, 21 January 1984
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)
- 5
- Number of spots (f)
- 25
- Relative number (R)
- 75
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19840121.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HKX – 1 | 17 | 70E | 122 | 70E | 3 | 12 |
| 2 | EKC – 7 | -16 | 67W | 259 | 67W | 15 | 8 |
| 3 | DKO – 10 | -5 | 03E | 189 | 03E | 8 | 11 |
| 4 | CAI – 5 | -5 | 13E | 179 | 13E | 4 | 9 |
| 5 | CAI – 2 | -15 | 18E | 174 | 18E | 1 | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.