Daily Sunspot Evaluation
Observation Sheet Wednesday, 21 March 1979
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)
- 11
- Number of spots (f)
- 55
- Relative number (R)
- 165
- Observer
- GA
- Reading
- all checks consistent
- File
- 19790321.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | D – 7 | 23 | 08E | 111 | 05E | 182 | |
| 2 | D – 1 | 7 | 10E | 109 | 07E | 181 | |
| 3 | D – 8 | -29 | 60E | 59 | 59E | 180 | |
| 4 | G – 3 | -28 | 32E | 87 | 29E | 175 | |
| 5 | D – 3 | -17 | 15W | 134 | 18W | 177 | |
| 6 | A – 2 | -14 | 13W | 132 | 16W | 165 | |
| 7 | H – 2 | -12 | 20W | 139 | 23W | 158 | |
| 8 | A – 2 | 21 | 63W | 182 | 66W | 179 | |
| 9 | A – 1 | 27 | 57W | 176 | 60W | 183 | |
| 10 | C – 3 | 18 | 40W | 159 | 43W | 161 | |
| 11 | E – 23 | 6 | 09W | 128 | 12W | 168 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.