Daily Sunspot Evaluation
Observation Sheet Friday, 15 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)
- 6
- Number of spots (f)
- 21
- Relative number (R)
- 81
- Observer
- TÖ0
- Reading
- all checks consistent
- File
- 19920515.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | -21 | 84W | 153 | 87W | - | 196 |
| 2 | ? – 1 | -29 | 76W | 147 | 79W | 1 | 185 |
| 3 | HA – 1 | -15 | 34W | 105 | 37W | 1.5 | 183 |
| 4 | CRI – 13 | -19 | 12W | 83 | 15W | 4 | 194 |
| 5 | AX – 3 | -28 | 32E | 39 | 29E | 0.5 | 199 |
| 6 | CAO – 2 | -24 | 45E | 26 | 42E | 3 | 197 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.