Daily Sunspot Evaluation
Observation Sheet Saturday, 26 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)
- 10
- Number of spots (f)
- 120
- Relative number (R)
- 220
- Observer
- HE
- Reading
- all checks consistent
- File
- 19910126.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HA – 5 | 23 | 56°W | 275 | 59°W | 4° | 35 |
| 2 | BRI – 7 | 26 | 01°E | 218 | 02°W | 5° | 43 |
| 3 | BRI – 12 | 9 | 08°E | 211 | 05°E | 7.5 | 38 |
| 4 | AX – 3 | 12 | 33°E | 186 | 30°E | 2° | 45 |
| 5 | AR – 1 | -9 | 11°E | 208 | 08°E | 0.5 | 44 |
| 6 | FKC – 37 | -18 | 18°E | 201 | 15°E | 18.5 | 41 |
| 7 | DKC – 39 | -10 | 23°E | 196 | 26°E | 13° | 42 |
| 8 | CAI – 9 | -12 | 37°E | 182 | 34°E | 7.5 | 46 |
| 9 | AR – 1 | -16 | 65°E | 154 | 62°E | 0.5 | 47 |
| 10 | ? – 6 | -12 | 80°E | 139 | 77°E | 18° | 48 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.