Daily Sunspot Evaluation
Observation Sheet Tuesday, 8 January 1991
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)
- 58
- Relative number (R)
- 138
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19910108.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HS – 2 | 9 | 56W | 152 | 58W | 3.5 | 3 |
| 2 | BRO – 5 | 6 | 53E | 43 | 51E | 4 | 21 |
| 3 | FKI – 13 | 14 | 77E | 19 | 75E | 16 | 22 |
| 4 | HA – 2 | -9 | 68W | 164 | 70W | 3 | 12 |
| 5 | BXO – 3 | -5 | 65W | 161 | 67W | 5 | 19 |
| 6 | DKC – 29 | -11 | 49W | 145 | 51W | 8.5 | 23 |
| 7 | AX – 3 | -17 | 22W | 118 | 24W | 2 | 24 |
| 8 | HA – 1 | -11 | 21E | 75 | 19E | 1 | 15 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.