Daily Sunspot Evaluation
Observation Sheet Sunday, 16 March 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)
- 2
- Number of spots (f)
- 3
- Relative number (R)
- 23
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800316.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 2 | -17 | 35W | 68 | 37W | 1 | |
| 2 | AXX – 1 | -3 | 58E | 335 | 56E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.