Daily Sunspot Evaluation
Observation Sheet Wednesday, 16 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)
- 6
- Number of spots (f)
- 41
- Relative number (R)
- 101
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19910116.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | FKO – 15 | 15 | 29W | 19 | 30W | 21.5 | 22 |
| 2 | CAI – 5 | 27 | 23E | 327 | 22E | 7.5 | 32 |
| 3 | BRO – 2 | -22 | 07W | 357 | 08W | 3.5 | 33 |
| 4 | BRO – 2 | -14 | 03W | 353 | 04W | 3° | 30 |
| 5 | DAC – 13 | -7 | 03W | 353 | 04W | 8° | 27 |
| 6 | AR – 4 | -21 | 13E | 337 | 12E | 2° | 31 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.