Daily Sunspot Evaluation
Observation Sheet Wednesday, 23 April 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)
- 5
- Number of spots (f)
- 33
- Relative number (R)
- 83
- Observer
- AT
- Reading
- all checks consistent
- File
- 19690423.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 6 | 7 | 35E | 330 | |||
| 2 | J – 1 | -15 | 55W | 60 | |||
| 3 | C – 13 | -11 | 39W | 44 | |||
| 4 | ? – 1 | 10 | 88W | 93 | |||
| 5 | H – 12 | 21 | 54W | 59 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.