Daily Sunspot Evaluation
Observation Sheet Tuesday, 12 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)
- 8
- Number of spots (f)
- 72
- Relative number (R)
- 152
- Observer
- MB
- Reading
- all checks consistent
- File
- 19930112.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | BXI – 13 | 107 | 18W | 132 | 20W | 5 | 12 |
| 2 | CRO – 13 | 108 | 03W | 118 | 05W | 5 | 6 |
| 3 | HS – 1 | -5 | 70W | 185 | 72W | 2 | 2 |
| 4 | FAI – 19 | -18 | 65W | 180 | 67W | 16.5 | 11 |
| 5 | AX – 2 | -25 | 53W | 168 | 55W | 3 | 11 |
| 6 | BXO – 2 | -20 | 49W | 164 | 51W | 5 | 11 |
| 7 | DAC – 15 | -13 | 16W | 131 | 18W | 4 | 5 |
| 8 | BXO – 7 | -10 | 05E | 110 | 03E | 3 | 13 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.