Daily Sunspot Evaluation
Observation Sheet Friday, 4 March 1988
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)
- 32
- Relative number (R)
- 72
- Observer
- HM
- Reading
- all checks consistent
- File
- 19880304.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 13 | 17 | 03E | 142 | 01E | 7 | 40 |
| 2 | DAI – 9 | 23 | 03E | 142 | 01E | 3.5 | 45 |
| 3 | CAO – 3 | -34 | 67W | 212 | 67W | 5 | 44 |
| 4 | DAI – 7 | -21 | 17W | 162 | 19W | 8.5 | 42 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.