Daily Sunspot Evaluation
Observation Sheet Monday, 15 May 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)
- 8
- Number of spots (f)
- 98
- Relative number (R)
- 178
- Observer
- FA
- Reading
- all checks consistent
- File
- 19720515.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | B – 3 | 12 | 02E | 7 | |||
| 2 | H – 1 | 12 | 71E | 298 | |||
| 3 | J – 1 | 8 | 59E | 310 | |||
| 4 | E – 39 | -5 | 39E | 330 | |||
| 5 | J – 1 | -10 | 48E | 321 | |||
| 6 | E – 15 | -14 | 69E | 300 | |||
| 7 | A – 1 | -19 | 28E | 341 | |||
| 8 | E – 37 | -8 | 01W | 10 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.