Daily Sunspot Evaluation
Observation Sheet Tuesday, 12 May 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)
- 7
- Number of spots (f)
- 23
- Relative number (R)
- 93
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19920512.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | CSO – 4 | 6 | 56W | 167 | 59W | 9 | 192 |
| 2 | BXO – 4 | -22 | 44W | 155 | 49W | 8 | 196 |
| 3 | DSO – 3 | -28 | 41W | 152 | 44W | 8 | 185 |
| 4 | HS – 1 | -16 | 05E | 106 | 02E | 1.5 | 189 |
| 5 | HA – 8 | -18 | 28E | 83 | 25E | 2.5 | 194 |
| 6 | BXO – 2 | -14 | 74E | 37 | 71E | 5 | 198 |
| 7 | ? – 1 | -23 | 85E | 26 | 82E | - | 197 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.