Daily Sunspot Evaluation
Observation Sheet Sunday, 14 March 1971
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)
- 8
- Number of spots (f)
- 38
- Relative number (R)
- 118
- Observer
- HA
- Reading
- all checks consistent
- File
- 19710314.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 19 | 16E | 242 | |||
| 2 | J – 1 | 20 | 48E | 210 | |||
| 3 | G – 8 | 8 | 47E | 211 | |||
| 4 | J – 3 | -4 | 43E | 215 | |||
| 5 | D – 13 | -16 | 06W | 264 | |||
| 6 | J – 4 | -11 | 25W | 283 | |||
| 7 | B – 5 | -9 | 37W | 295 | |||
| 8 | J – 1 | -8 | 44W | 302 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.