Daily Sunspot Evaluation
Observation Sheet Sunday, 27 December 1959
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)
- 12
- Number of spots (f)
- 61
- Relative number (R)
- 181
- Observer
- FY
- Reading
- all checks consistent
- File
- 19591227.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 7 | 26 | 35E | ||||
| 2 | A – 3 | 12 | 32E | ||||
| 3 | J – 1 | 9 | 59E | ||||
| 4 | A – 2 | -7 | 50E | ||||
| 5 | J – 1 | -18 | 84W | ||||
| 6 | ? – 4 | 9 | 76W | ||||
| 7 | J – 2 | 12 | 67W | ||||
| 8 | H – 6 | 18 | 50W | ||||
| 9 | E – 23 | 9 | 18W | ||||
| 10 | D – 4 | 25 | 51W | ||||
| 11 | J – 1 | 20 | 30W | ||||
| 12 | C – 7 | 15 | 1W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.