Daily Sunspot Evaluation
Observation Sheet Friday, 30 December 1977
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)
- 4
- Number of spots (f)
- 26
- Relative number (R)
- 66
- Observer
- GA
- Reading
- all checks consistent
- File
- 19771230.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 11 | 20 | 05E | 238 | 02E | 4 | |
| 2 | G – 4 | -17 | 65E | 178 | 62E | 1 | |
| 3 | H – 6 | -18 | 44E | 202 | 38E | 2 | |
| 4 | J – 5 | 20 | 08W | 251 | 11W | 3 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.