Daily Sunspot Evaluation
Observation Sheet Sunday, 11 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)
- 4
- Number of spots (f)
- 24
- Relative number (R)
- 64
- Observer
- HM
- Reading
- all checks consistent
- File
- 19780611.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 10 | 19 | 11E | 242 | 08E | ||
| 2 | C – 9 | 18 | 42E | 211 | 39E | ||
| 3 | A – 1 | -32 | 59E | 194 | 56E | ||
| 4 | J – 4 | 19 | 12W | 265 | 15W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.