Daily Sunspot Evaluation
Observation Sheet Thursday, 25 January 1968
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)
- 5
- Number of spots (f)
- 13
- Relative number (R)
- 63
- Observer
- SB
- Reading
- counts consistent, some coordinates doubtful
- File
- 19680125.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 3 | 14 | 32E | 162 ⚠ | |||
| 2 | A – 1 | -11 | 32E | 202 | |||
| 3 | J – 3 | -11 | HE | 163 | |||
| 4 | J – 4 | 28 | 58W | 32 ⚠ | |||
| 5 | C – 2 | 4 | 08W | 242 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.