Daily Sunspot Evaluation
Observation Sheet Sunday, 10 June 1973
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)
- 13
- Relative number (R)
- 53
- Observer
- ED
- Reading
- all checks consistent
- File
- 19730610.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 9 | 15 | 38E | 209 | 106 | ||
| 2 | A – 1 | 13 | 51E | 196 | 110 | ||
| 3 | J – 1 | -16 | 37E | 210 | 108 | ||
| 4 | B – 2 | 12 | 16W | 263 | 104 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.