Daily Sunspot Evaluation
Observation Sheet Tuesday, 31 October 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)
- 12
- Number of spots (f)
- 68
- Relative number (R)
- 188
- Observer
- GT
- Reading
- counts consistent, some coordinates doubtful
- File
- 19781031.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | -15 | 48E | 125 | 48E | ||
| 2 | D – 18 | -11 | 27E | 146 | 27E | ||
| 3 | H – 7 | -20 | 51E | 122 | 51E | ||
| 4 | A – 5 | -10 | 20E | 153 | 20E | ||
| 5 | A – 5 | -12 | 21E | 152 | 21E | ||
| 6 | J – 2 | -13 | 16E | 157 | 16E | ||
| 7 | H – 7 | -17 | 28W | 201 | 28W | ||
| 8 | ? – 3 | -18 | 75W | 248 | 75W | ||
| 9 | C – 6 | 18 | 38W | 211 | 38W | ||
| 10 | J – 3 | 20 | 47W | 220 | 47W | ||
| 11 | A – 7 | 20 | 42W | 215 | 42W | ||
| 12 | J – 3 | 36 | 19W | 182 ⚠ | 19W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.