Daily Sunspot Evaluation
Observation Sheet Wednesday, 29 March 1972
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)
- 4
- Number of spots (f)
- 13
- Relative number (R)
- 53
- Observer
- FA
- Reading
- all checks consistent
- File
- 19720329.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 6 | -7 | 70E | 199 | |||
| 2 | A – 1 | -14 | 15E | 254 | |||
| 3 | A – 1 | -17 | 02E | 267 | |||
| 4 | J – 5 | 8 | 67W | 336 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.