Daily Sunspot Evaluation
Observation Sheet Sunday, 2 October 1977
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)
- 3
- Number of spots (f)
- 19
- Relative number (R)
- 49
- Observer
- GT
- Reading
- all checks consistent
- File
- 19771002.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 21 | 36E | 300 | 33E | ||
| 2 | J – 2 | -20 | 29E | 307 | 26E | ||
| 3 | H – 15 | 15 | 09W | 345 | 12W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.