Daily Sunspot Evaluation
Observation Sheet Thursday, 28 January 1993
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)
- 11
- Relative number (R)
- 41
- Observer
- YK
- Reading
- counts consistent, some coordinates doubtful
- File
- 19930128.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 1 | -14 | 48W | 308 ⚠ | 46W | 1.5 | 19 |
| 2 | DAI – 9 | -18 | 27W | 292 | 30W | 5.5 | 20 |
| 3 | HA – 1 | -15 | 77E | 188 | 74E | 2 | 26 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.