Daily Sunspot Evaluation
Observation Sheet Wednesday, 11 March 1992
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)
- 11
- Number of spots (f)
- 31
- Relative number (R)
- 141
- Observer
- TA
- Reading
- counts consistent, some coordinates doubtful
- File
- 19920311.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 22 | 50W | 260 | 53W | - | 106 |
| 2 | HA – 2 | 12 | 20W | 230 | 23W | 1 | 112 |
| 3 | HA – 1 | 14 | 23E | 187 | 20E | 1.5 | 117 |
| 4 | DAI – 9 | -6 | 29W | 229 ⚠ | 32W | 6.5 | 119 |
| 5 | HA – 2 | -39 | 27W | 237 | 30W | 2 | 120 |
| 6 | AX – 1 | -3 | 25W | 235 | 28W | - | 126 |
| 7 | DAO – 4 | -10 | 14E | 196 | 11E | 7 | 118 |
| 8 | DAO – 6 | -25 | 27E | 183 | 24E | 7 | 116 |
| 9 | HA – 1 | -14 | 61E | 149 | 58E | 2 | 125 |
| 10 | ? – 2 | -18 | 81E | 149 ⚠ | 86E | 4 | 124 |
| 11 | DAO – 2 | -27 | 75E | 135 | 72E | 10 | 127 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.