Daily Sunspot Evaluation
Observation Sheet Thursday, 12 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)
- 16
- Relative number (R)
- 76
- Observer
- HG
- Reading
- counts consistent, some coordinates doubtful
- File
- 19840712.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ARX – 3 | -4 | 46W | 116 | 48W | 2 | 125 |
| 2 | AXX – 3 | -7 | 38W | 108 | 40W | 0.75 | 131 |
| 3 | AXX – 2 | -11 | 37W | 107 | 39W | 0.5 | 176 |
| 4 | DAI – 5 | -9 | 07E | 63 | 05E | 8 | 127 |
| 5 | ARX – 2 | -6 | 41E | 29 | 39E | 1.5 | 129 |
| 6 | HAX – 1 | -15 | 70E | 60 ⚠ | 68E | 2 | 130 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.