Daily Sunspot Evaluation
Observation Sheet Saturday, 12 March 1983
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)
- 2
- Number of spots (f)
- 6
- Relative number (R)
- 26
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19830312.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 4 | -2 | 60W | 93 | 62W | 75 | 61 |
| 2 | AXX – 2 | -10 | 04W | 37 | 06W | 63 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.