Daily Sunspot Evaluation
Observation Sheet Friday, 1 January 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)
- 3
- Number of spots (f)
- 25
- Relative number (R)
- 55
- Observer
- HM
- Reading
- all checks consistent
- File
- 19880101.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAK – 1 | -35 | 67W | 321 | 69W | 1 | 1 |
| 2 | EKO – 23 | -35 | 04W | 255 | 03W | 15 | 2 |
| 3 | ARX – 1 | -19 | 61E | 193 | 53E | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.