Daily Sunspot Evaluation
Observation Sheet Tuesday, 19 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)
- 4
- Number of spots (f)
- 31
- Relative number (R)
- 71
- Observer
- MB
- Reading
- all checks consistent
- File
- 19920519.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 21 | 22 | 48E | 328 | 48E | 8.5 | 201 |
| 2 | AX – 1 | -5 | 66W | 83 | 67W | - | 206 |
| 3 | CRI – 6 | -15 | 25W | 42 | 26W | 05 | 204 |
| 4 | AX – 3 | -18 | 06E | 11 | 05E | 6.5 | 205 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.