Daily Sunspot Evaluation
Observation Sheet Sunday, 30 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)
- 12
- Number of spots (f)
- 135
- Relative number (R)
- 255
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19800330.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 13 | 25W | 234 | 28W | 2 | |
| 2 | DAO – 6 | 7 | 24W | 233 | 27W | 4 | |
| 3 | DAI – 28 | 13 | 18W | 227 | 21W | 9.5 | |
| 4 | BXO – 4 | 9 | 17W | 226 | 20W | 4 | |
| 5 | CAO – 19 | 10 | 06W | 215 | 09W | 4 | |
| 6 | AXX – 12 | 23 | 06W | 215 | 09W | 2 | |
| 7 | HAI – 12 | 14 | 03W | 212 | 00 | 2.5 | |
| 8 | FLI – 35 | 26 | 31E | 178 | 28E | 12E | |
| 9 | HSX – 2 | -28 | 12W | 221 | 15W | 2 | |
| 10 | HRI – 11 | -14 | 24E | 185 | 21E | 6 | |
| 11 | AXX – 4 | -9 | 30E | 179 | 27E | 2 | |
| 12 | HAX – 1 | -11 | 73E | 136 | 70E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.