Daily Sunspot Evaluation
Observation Sheet Monday, 6 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)
- 41
- Relative number (R)
- 81
- Observer
- FA
- Reading
- all checks consistent
- File
- 19720306.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 10 | 06E | 206 | |||
| 2 | E – 35 | -9 | 21E | 191 | |||
| 3 | H – 1 | -20 | 69E | 145 | |||
| 4 | J – 2 | -7 | 19W | 229 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.