Daily Sunspot Evaluation
Observation Sheet Tuesday, 21 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)
- 44
- Relative number (R)
- 104
- Observer
- GA
- Reading
- all checks consistent
- File
- 19780321.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | ? – 1 | 20 | 24E | 232 | 21E | ||
| 2 | ? – 2 | 17 | 78E | 178 | 75E | ||
| 3 | ? – 1 | -22 | 76E | 180 | 73E | ||
| 4 | E – 10 | -34 | 55W | 311 | 58W | ||
| 5 | C – 29 | 18 | 07W | 263 | 10W | ||
| 6 | ? – 1 | 30 | 11W | 267 | 14W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.