Daily Sunspot Evaluation
Observation Sheet Sunday, 30 July 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)
- 16
- Relative number (R)
- 56
- Observer
- GT
- Reading
- all checks consistent
- File
- 19780730.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 6 | 38 | 48E | 275 | 47E | ||
| 2 | B – 4 | 19 | 28E | 295 | 27E | ||
| 3 | J – 1 | 21 | 51E | 273 | 49E | ||
| 4 | J – 5 | -21 | 56E | 268 | 54E |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.