Daily Sunspot Evaluation
Observation Sheet Thursday, 6 June 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)
- 7
- Number of spots (f)
- 46
- Relative number (R)
- 116
- Observer
- HM
- Reading
- all checks consistent
- File
- 19740606.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 14 | 4 | 37E | 126 | |||
| 2 | A – 2 | -14 | 21E | 142 | |||
| 3 | A – 4 | -18 | 22E | 141 | |||
| 4 | J – 9 | -14 | 02E | 161 | |||
| 5 | J – 8 | -14 | 07W | 170 | |||
| 6 | A – 6 | -15 | 45W | 208 | |||
| 7 | J – 3 | -8 | 46W | 209 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.