Daily Sunspot Evaluation
Observation Sheet Tuesday, 27 January 1970
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)
- 11
- Number of spots (f)
- 94
- Relative number (R)
- 204
- Observer
- SM
- Reading
- all checks consistent
- File
- 19700127.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 0 | 17°E | 262 | |||
| 2 | B – 5 | 12 | 55°E | 224 | |||
| 3 | J – 2 | -3 | 13°E | 266 | |||
| 4 | D – 12 | -7 | 09°E | 270 | |||
| 5 | C – 8 | -5 | 23°E | 256 | |||
| 6 | C – 8 | -8 | 20°E | 259 | |||
| 7 | A – 1 | -19 | 30°E | 249 | |||
| 8 | J – 1 | -22 | 07°W | 286 | |||
| 9 | E – 34 | -17 | 15°W | 294 | |||
| 10 | D – 16 | -10 | 18°W | 297 | |||
| 11 | C – 5 | -4 | 58°W | 337 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.