Daily Sunspot Evaluation
Observation Sheet Wednesday, 27 September 1972
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)
- 68
- Relative number (R)
- 118
- Observer
- FA
- Reading
- all checks consistent
- File
- 19720927.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 5 | 8 | 19E | 4 | |||
| 2 | G – 2 | -8 | 49E | 334 | |||
| 3 | E – 49 | -5 | 11W | 34 | |||
| 4 | J – 2 | -15 | 57W | 80 | |||
| 5 | B – 10 | 16 | 59W | 82 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.