Daily Sunspot Evaluation
Observation Sheet Sunday, 1 May 1988
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)
- 26
- Relative number (R)
- 86
- Observer
- SG0
- Reading
- all checks consistent
- File
- 19880501.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 1 | 17 | 30W | 130 | 33W | 86 | |
| 2 | AX – 1 | 20 | 65E | 35 | 62E | 67 | |
| 3 | HS – 1 | -19 | 32W | 132 | 35W | 1.5 | 80 |
| 4 | DAI – 12 | -22 | 14W | 114 | 17W | 6.5 | 84 |
| 5 | DKI – 9 | -20 | 08W | 108 | 11W | 8.5 | 85 |
| 6 | BRO – 2 | -19 | 70E | 30 | 67E | 7 | 85 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.