Daily Sunspot Evaluation
Observation Sheet Friday, 25 January 2002
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)
- 11
- Number of spots (f)
- 31
- Relative number (R)
- 141
- Observer
- SB0
- Reading
- all checks consistent
- File
- 20020125.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 20 | 74W | 194 | 77W | 1 | |
| 2 | ESO – 4 | 17 | 33W | 153 | 36W | 11 | |
| 3 | AX – 1 | 12 | 32W | 152 | 35W | - | |
| 4 | DSO – 2 | 7 | 01W | 121 | 04W | 4.5 | |
| 5 | DSO – 2 | 12 | 06E | 114 | 03E | 4 | |
| 6 | DAO – 5 | 7 | 74E | 46 | 71E | 5 | |
| 7 | ? – 3 | -14 | 81W | 201 | 84W | - | |
| 8 | HS – 2 | -15 | 27W | 147 | 30W | -2.5 | |
| 9 | HH – 6 | -9 | 13W | 133 | 16W | -5.5 | |
| 10 | DAI – 3 | -3 | 25E | 95 | 22E | 4 | |
| 11 | DAO – 2 | -24 | 39E | 81 | 36E | 4 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.