Daily Sunspot Evaluation
Observation Sheet Tuesday, 30 June 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)
- 6
- Number of spots (f)
- 105
- Relative number (R)
- 165
- Observer
- MA
- Reading
- all checks consistent
- File
- 19700630.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 50 | 23 | 09E | 39 | |||
| 2 | D – 15 | 8 | 49E | 359 | |||
| 3 | D – 18 | -2 | 35E | 13 | |||
| 4 | H – 15 | -8 | 51E | 357 | |||
| 5 | J – 3 | -6 | 01W | 49 | |||
| 6 | B – 4 | -10 | 06W | 54 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.