Daily Sunspot Evaluation
Observation Sheet Sunday, 1 October 1972
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)
- 24
- Relative number (R)
- 74
- Observer
- HM
- Reading
- counts consistent, some coordinates doubtful
- File
- 19721001.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | G – 4 | 11 | 16E | 311 | |||
| 2 | G – 3 | 18 | 55E | 272 | |||
| 3 | J – 2 | -9 | 53E | 294 ⚠ | |||
| 4 | E – 11 | -8 | 10W | 337 | |||
| 5 | ? – 4 | -5 | 70W | 37 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.