Daily Sunspot Evaluation
Observation Sheet Tuesday, 26 July 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)
- 5
- Number of spots (f)
- 19
- Relative number (R)
- 69
- Observer
- HM
- Reading
- all checks consistent
- File
- 19770726.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 2 | 21 | 13E | 142 | 10E | ||
| 2 | J – 1 | 15 | 09E | 146 | 06E | ||
| 3 | B – 6 | -24 | 24E | 131 | 21E | ||
| 4 | B – 2 | -31 | 00 | 155 | 03W | ||
| 5 | C – 8 | 19 | 32W | 187 | 35W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.