Daily Sunspot Evaluation
Observation Sheet Sunday, 28 May 1978
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)
- 5
- Number of spots (f)
- 121
- Relative number (R)
- 171
- Observer
- GT
- Reading
- all checks consistent
- File
- 19780528.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | H – 4 | 26 | 13E | 65 | 10E | ||
| 2 | D – 24 | 22 | 41E | 37 | 38E | ||
| 3 | C – 10 | -17 | 01E | 77 | 02W | ||
| 4 | D – 23 | 22 | 14W | 92 | 17W | ||
| 5 | F – 60 | 18 | 03W | 81 | 06W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.