Daily Sunspot Evaluation
Observation Sheet Saturday, 7 July 1984
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)
- 12
- Relative number (R)
- 72
- Observer
- TS
- Reading
- all checks consistent
- File
- 19840707.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 4 | 75W | 209 | 75W | 3 | (147) |
| 2 | HAX – 1 | 13 | 35W | 171 | 37W | 2 | (149) |
| 3 | AXX – 1 | 3 | 24E | 112 | 22E | - | (152) |
| 4 | CAO – 2 | -4 | 23E | 113 | 21E | 4 | (155) |
| 5 | DAO – 4 | -10 | 29E | 109 | 25E | 6.5 | (156) |
| 6 | AXX – 3 | -1 | 32E | 104 | 30E | 1.5 | (157) |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.