Daily Sunspot Evaluation
Observation Sheet Sunday, 5 May 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)
- 58
- Relative number (R)
- 128
- Observer
- TA
- Reading
- all checks consistent
- File
- 19910505.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | DAI – 15 | 7 | 43W | 35 | 44W | 8 | 196 |
| 2 | ? – 2 | 29 | 78E | 274 | 77E | 5 | 208 |
| 3 | BXI – 5 | -23 | 70W | 62 | 71W | 6 | 206 |
| 4 | HA – 2 | -22 | 31W | 23 | 32W | 1.5 | 199 |
| 5 | AX – 5 | -7 | 22W | 14 | 23W | 3 | 202 |
| 6 | DKI – 27 | -9 | 02E | 350 | 01E | 7 | 204 |
| 7 | HA – 2 | -12 | 11E | 341 | 10E | 1 | 203 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.