Daily Sunspot Evaluation
Observation Sheet Friday, 17 March 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)
- 6
- Number of spots (f)
- 35
- Relative number (R)
- 95
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780317.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 32 | 38E | 270 | 36E | ||
| 2 | J – 5 | 17 | 42E | 266 | 40E | ||
| 3 | ? – 1 | 21 | 78E | 230 | 76E | ||
| 4 | E – 21 | -33 | 04W | 312 | 06W | ||
| 5 | A – 3 | -2 | 52W | 0 | 54W | ||
| 6 | H – 4 | 14 | 48W | 356 | 50W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.