Daily Sunspot Evaluation
Observation Sheet Sunday, 2 March 1969
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)
- 7
- Number of spots (f)
- 42
- Relative number (R)
- 112
- Observer
- SM
- Reading
- all checks consistent
- File
- 19690302.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 4 | 16 | 42E | 286 | |||
| 2 | J – 2 | 14 | 53E | 275 | |||
| 3 | J – 1 | 2 | 27E | 301 | |||
| 4 | A – 1 | -12 | 27E | 301 | |||
| 5 | J – 3 | -17 | 30E | 298 | |||
| 6 | E – 29 | -16 | 14W | 342 | |||
| 7 | J – 2 | -13 | 07W | 335 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.