Daily Sunspot Evaluation
Observation Sheet Tuesday, 17 November 1959
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)
- 16
- Relative number (R)
- 86
- Observer
- ET
- Reading
- all checks consistent
- File
- 19591117.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 14 | 25E | ||||
| 2 | A – 5 | 8 | 18E | ||||
| 3 | J – 1 | 10 | 54E | ||||
| 4 | G – 4 | -16 | 55W | ||||
| 5 | ? – 2 | -15 | 76W | ||||
| 6 | J – 1 | 7 | 69W | ||||
| 7 | G – 2 | 20 | 44W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.