Daily Sunspot Evaluation
Observation Sheet Saturday, 30 December 1978
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)
- 84
- Relative number (R)
- 164
- Observer
- GT
- Reading
- all checks consistent
- File
- 19781230.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 3 | -9 | 62E | 42 | 60E | 4 | |
| 2 | J – 2 | -17 | 67E | 37 | 65E | 3 | |
| 3 | E – 13 | -34 | 67E | 37 | 65E | 2 | |
| 4 | D – 9 | -21 | 23E | 81 | 21E | 8 | |
| 5 | G – 8 | -15 | 11E | 93 | 09E | 10 | |
| 6 | D – 17 | -32 | 30E | 74 | 28E | 9 | |
| 7 | J – 3 | -30 | 09E | 95 | 07E | 11 | |
| 8 | D – 29 | 11 | 22W | 126 | 24W | 13 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.