Daily Sunspot Evaluation
Observation Sheet Tuesday, 16 August 1983
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)
- 37
- Relative number (R)
- 107
- Observer
- TS
- Reading
- all checks consistent
- File
- 19830816.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HAX – 1 | 7 | 11E | 108 | 08E | 1 | 246 |
| 2 | HAX – 1 | 18 | 32E | 87 | 29E | 1.25 | 249 |
| 3 | FAC – 25 | -6 | 38W | 157 | 41W | 16E | 244 |
| 4 | HAX – 1 | 0 | 37W | 156 | 40W | 175E | 243 |
| 5 | AXX – 2 | -4 | 03E | 116 | 247 | ||
| 6 | DRO – 5 | -21 | 11E | 108 | 08E | 5.75 | 248 |
| 7 | AXX – 2 | -18 | 26E | 93 | 23E | 1 | 251 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.