Daily Sunspot Evaluation
Observation Sheet Friday, 16 June 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)
- 9
- Number of spots (f)
- 50
- Relative number (R)
- 140
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780616.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | 14 | 14E | 169 | 14E | ||
| 2 | B – 6 | 18 | 22E | 161 | 22E | ||
| 3 | C – 6 | 19 | 31E | 152 | 31E | ||
| 4 | ? – 5 | -23 | 68E | 115 | 68E | ||
| 5 | D – 14 | 15 | 61W | 244 | 61W | ||
| 6 | C – 5 | 15 | 23W | 206 | 26W | ||
| 7 | A – 1 | 21 | 33W | 216 | 33W | ||
| 8 | ? – 2 | 25 | 17W | 200 | 17W | ||
| 9 | C – 10 | 25 | 04W | 187 | 04W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.