Daily Sunspot Evaluation
Observation Sheet Monday, 23 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)
- 7
- Number of spots (f)
- 23
- Relative number (R)
- 93
- Observer
- HM
- Reading
- all checks consistent
- File
- 19721023.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | -11 | 83E | 317 | |||
| 2 | J – 2 | -10 | 50E | 350 | |||
| 3 | G – 3 | -17 | 55E | 345 | |||
| 4 | J – 1 | -15 | 12E | 28 | |||
| 5 | C – 8 | -15 | 13W | 53 | |||
| 6 | B – 2 | -8 | 14W | 54 | |||
| 7 | D – 6 | -7 | 26W | 66 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.