Daily Sunspot Evaluation
Observation Sheet Friday, 30 May 1969
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)
- 8
- Number of spots (f)
- 25
- Relative number (R)
- 105
- Observer
- SM
- Reading
- all checks consistent
- File
- 19690530.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 15 | 36E | 200 | |||
| 2 | J – 1 | 8 | 24E | 212 | |||
| 3 | B – 8 | 5 | 32E | 204 | |||
| 4 | J – 2 | -15 | 59E | 177 | |||
| 5 | ? – 4 | -15 | 83W | 319 | |||
| 6 | H – 4 | 9 | 81W | 316 | |||
| 7 | B – 4 | 12 | 52W | 288 | |||
| 8 | A – 1 | 13 | 38W | 274 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.