Daily Sunspot Evaluation
Observation Sheet Saturday, 17 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)
- 14
- Number of spots (f)
- 64
- Relative number (R)
- 204
- Observer
- AÖ0
- Reading
- counts consistent, some coordinates doubtful
- File
- 19790317.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 40 | 00 | 170 | 02W | 169 | |
| 2 | A – 1 | 21 | 08E | 162 | 06E | 152 | |
| 3 | J – 2 | 17 | 11E | 159 | 09E | 161 | |
| 4 | A – 1 | 22 | 67E | 103 | 65E | 174 | |
| 5 | H – 2 | 7 | 17E | 123 ⚠ | 15E | 168 | |
| 6 | H – 3 | -10 | 33E | 137 | 31E | 158 | |
| 7 | D – 8 | -13 | 60E | 110 | 58E | 171 | |
| 8 | J – 2 | -13 | 11E | 129 ⚠ | 39E | 165 | |
| 9 | C – 5 | -15 | 32E | 138 | 30E | 166 | |
| 10 | J – 1 | -28 | 77E | 93 | 75E | 173 | |
| 11 | A – 5 | -27 | 26W | 196 | 28W | 175 | |
| 12 | E – 18 | -26 | 40W | 210 | 42W | 163 | |
| 13 | A – 1 | 7 | 16W | 186 | 18W | 150 | |
| 14 | D – 13 | 6 | 01W | 171 | 03W | 154 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.