Daily Sunspot Evaluation
Observation Sheet Thursday, 11 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)
- 7
- Number of spots (f)
- 36
- Relative number (R)
- 106
- Observer
- GT
- Reading
- all checks consistent
- File
- 19780511.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | A – 3 | 16 | 05E | 298 | 02E | ||
| 2 | C – 13 | 18 | 20E | 283 | 17E | ||
| 3 | D – 13 | -19 | 47E | 256 | 44E | ||
| 4 | B – 3 | -32 | 37E | 266 | 34E | √ | |
| 5 | A – 1 | -14 | 08W | 311 | 11W | ||
| 6 | A – 1 | -29 | 42W | 345 | 45W | ||
| 7 | J – 2 | 17 | 48W | 351 | 51W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.