Daily Sunspot Evaluation
Observation Sheet Tuesday, 4 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)
- 39
- Relative number (R)
- 109
- Observer
- FY
- Reading
- all checks consistent
- File
- 19690304.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | 2 | 03°E | 301 | |||
| 2 | C – 8 | 16 | 17°E | 287 | |||
| 3 | A – 1 | 11 | 15°E | 289 | |||
| 4 | J – 1 | 15 | 28°E | 276 | |||
| 5 | B – 4 | 11 | 43°E | 261 | |||
| 6 | C – 7 | -17 | 04°E | 300 | |||
| 7 | H – 15 | -18 | 37°W | 341 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.