Daily Sunspot Evaluation
Observation Sheet Saturday, 29 September 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)
- 9
- Number of spots (f)
- 44
- Relative number (R)
- 134
- Observer
- ED
- Reading
- all checks consistent
- File
- 19730929.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 21 | 19E | 199 | 184 | ||
| 2 | J – 1 | 12 | 51E | 167 | 188 | ||
| 3 | C – 20 | -13 | 46E | 172 | 189 | ||
| 4 | J – 3 | -15 | 25E | 193 | 186 | ||
| 5 | A – 1 | 4 | 32W | 250 | 190 | ||
| 6 | J – 2 | 5 | 43W | 261 | 176 | ||
| 7 | A – 2 | 5 | 69W | 287 | 179 | ||
| 8 | A – 2 | 9 | 40W | 258 | 185 | ||
| 9 | G – 11 | 13 | 35W | 253 | 175 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.