Daily Sunspot Evaluation
Observation Sheet Sunday, 25 February 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)
- 9
- Number of spots (f)
- 28
- Relative number (R)
- 118
- Observer
- AÖ0
- Reading
- all checks consistent
- File
- 19790225.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 2 | 36 | 09E | 65 | 07E | 116 | |
| 2 | J – 2 | -19 | 61E | 13 | 59E | 118 | |
| 3 | J – 1 | -26 | 05E | 69 | 03E | 114 | |
| 4 | A – 1 | -34 | 02E | 72 | 00 | 122 | |
| 5 | J – 1 | -26 | 09W | 83 | 11W | 112 | |
| 6 | D – 10 | -21 | 19W | 93 | 21W | 120 | |
| 7 | J – 4 | -30 | 55W | 129 | 57W | 108 | |
| 8 | A – 1 | -15 | 35W | 109 | 37W | 123 | |
| 9 | ? – 6 | 14 | 73W | 147 | 75W | 109 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.