Daily Sunspot Evaluation
Observation Sheet Wednesday, 16 July 1980
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)
- 12
- Number of spots (f)
- 153
- Relative number (R)
- 273
- Observer
- OG
- Reading
- all checks consistent
- File
- 19800716.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | HKX – 5 | 18 | 60W | 281 | 63W | 6 | |
| 2 | DLE – 10 | 19 | 13W | 234 | 16W | 8 | |
| 3 | AXX – 1 | 22 | 18E | 203 | 15E | - | |
| 4 | HLI – 10 | 18 | 49E | 172 | 46E | 8 | |
| 5 | CAO – 2 | 6 | 62E | 159 | 59E | 6 | |
| 6 | DAO – 8 | 13 | 66E | 155 | 63E | 9 | |
| 7 | HAX – 1 | -13 | 56W | 277 | 59W | 2 | |
| 8 | ELC – 79 | -11 | 12E | 209 | 09E | 15 | |
| 9 | CAO – 3 | -23 | 16E | 205 | 13E | 3 | |
| 10 | CAI – 16 | -10 | 32E | 189 | 29E | 7 | |
| 11 | HKX – 9 | -23 | 50E | 171 | 47E | 7 | |
| 12 | EAI – 9 | -20 | 68E | 153 | 65E | 13 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.