Daily Sunspot Evaluation
Observation Sheet Monday, 9 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)
- 7
- Number of spots (f)
- 29
- Relative number (R)
- 99
- Observer
- HM
- Reading
- all checks consistent
- File
- 19880509.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | AX – 2 | 11 | 31W | 25 | 34W | 1 | 96 |
| 2 | CAI – 7 | 25 | 19W | 13 | 22W | 10 | 89 |
| 3 | DAI – 4 | 21 | 13W | 7 | 16W | 4 | 93 |
| 4 | HA – 3 | 19 | 22E | 332 | 19E | 2 | 91 |
| 5 | BXO – 3 | -36 | 41W | 35 | 44W | 4 | 94 |
| 6 | DAI – 9 | -16 | 32E | 322 | 29E | 6.5 | 95 |
| 7 | AX – 1 | -20 | 70E | 284 | 67E | 97 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.