Daily Sunspot Evaluation
Observation Sheet Friday, 3 May 1974
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)
- 37
- Relative number (R)
- 97
- Observer
- FA
- Reading
- all checks consistent
- File
- 19740503.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | -4 | 21E | 230 | |||
| 2 | C – 15 | -8 | 50E | 201 | |||
| 3 | A – 1 | -7 | 19E | 232 | |||
| 4 | D – 14 | -14 | 61E | 190 | |||
| 5 | ? – 1 | -14 | 80E | 171 | |||
| 6 | C – 5 | 7 | 49W | 300 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.