Daily Sunspot Evaluation
Observation Sheet Monday, 14 February 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)
- 6
- Number of spots (f)
- 27
- Relative number (R)
- 87
- Observer
- FA
- Reading
- all checks consistent
- File
- 19720214.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 3 | 17 | 05E | 124 | |||
| 2 | J – 1 | 23 | 34E | 95 | |||
| 3 | C – 9 | -9 | 74E | 55 | |||
| 4 | H – 7 | -19 | 32E | 97 | |||
| 5 | A – 4 | -21 | 39E | 90 | |||
| 6 | H – 3 | -9 | 16W | 145 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.