Daily Sunspot Evaluation
Observation Sheet Wednesday, 6 March 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)
- 7
- Number of spots (f)
- 37
- Relative number (R)
- 107
- Observer
- HÇ0
- Reading
- all checks consistent
- File
- 19910306.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CAI – 6 | 4 | 59W | 125 | 62W | 8 | 95 |
| 2 | AX – 2 | 7 | 56W | 122 | 59W | 1.5 | 101 |
| 3 | HA – 2 | 14 | 40E | 26 | 37E | 1 | 103 |
| 4 | DAO – 7 | 17 | 66E | 0 | 63E | 9 | 104 |
| 5 | ? – 1 | 14 | 82E | 344 | 79E | 1 | 110 |
| 6 | CAO – 6 | -9 | 66E | 0 | 63E | 7 | 108 |
| 7 | ? – 13 | -23 | 81E | 345 | 78E | 12 | 109 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.