Daily Sunspot Evaluation
Observation Sheet Monday, 16 April 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)
- 7
- Number of spots (f)
- 77
- Relative number (R)
- 147
- Observer
- GA
- Reading
- all checks consistent
- File
- 19790416.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | E – 22 | 31 | 10E | 126 | 07E | 221 | |
| 2 | A – 4 | 18 | 04E | 132 | 01E | 223 | |
| 3 | D – 2 | 8 | 05E | 131 | 02E | 217 | |
| 4 | C – 23 | -25 | 08E | 128 | 05E | 222 | |
| 5 | H – 16 | 3 | 09W | 145 | 12W | 215 | |
| 6 | A – 4 | 19 | 50W | 186 | 53W | 212 | |
| 7 | H – 6 | 33 | 39W | 175 | 42W | 225 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.