Daily Sunspot Evaluation
Observation Sheet Monday, 24 February 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)
- 108
- Relative number (R)
- 188
- Observer
- AT
- Reading
- all checks consistent
- File
- 19690224.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 26 | 14 | 02E | 48 | |||
| 2 | ? – 4 | -16 | 74E | 336 | |||
| 3 | ? – 4 | -21 | 72E | 338 | |||
| 4 | B – 10 | -27 | 35W | 85 | |||
| 5 | C – 10 | -13 | 20W | 70 | |||
| 6 | D – 15 | 11 | 43W | 93 | |||
| 7 | E – 35 | 13 | 15W | 65 | |||
| 8 | B – 4 | 20 | 20W | 70 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.