Daily Sunspot Evaluation
Observation Sheet Sunday, 30 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)
- 7
- Number of spots (f)
- 56
- Relative number (R)
- 126
- Observer
- HM
- Reading
- counts consistent, some coordinates doubtful
- File
- 19730930.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 21 | 06E | 193 ⚠ | 184 | ||
| 2 | A – 3 | 16 | 52E | 153 | 191 | ||
| 3 | J – 1 | 12 | 38E | 167 | 188 | ||
| 4 | C – 25 | -13 | 32E | 173 | 189 | ||
| 5 | J – 10 | -14 | 12E | 193 | 186 | ||
| 6 | J – 2 | 6 | 56W | 261 | 176 | ||
| 7 | E – 14 | 13 | 49W | 254 | 175 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.