Daily Sunspot Evaluation
Observation Sheet Wednesday, 28 April 1976
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)
- 2
- Number of spots (f)
- 13
- Relative number (R)
- 33
- Observer
- GA
- Reading
- all checks consistent
- File
- 19760428.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 5 | 3 | 32E | 358 | 29E | ||
| 2 | G – 8 | -10 | 10W | 40 | 13W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.