Daily Sunspot Evaluation
Observation Sheet Sunday, 28 November 1971
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)
- 98
- Relative number (R)
- 168
- Observer
- HM
- Reading
- all checks consistent
- File
- 19711128.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 1 | -10 | 77E | 359 | |||
| 2 | J – 2 | -15 | 44E | 32 | |||
| 3 | E – 43 | -17 | 12W | 88 | |||
| 4 | C – 12 | -10 | 06W | 82 | |||
| 5 | B – 20 | -10 | 15W | 91 | |||
| 6 | H – 1 | -7 | 57W | 133 | |||
| 7 | D – 19 | 14 | 05W | 81 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.