Daily Sunspot Evaluation
Observation Sheet Sunday, 26 February 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)
- 9
- Number of spots (f)
- 72
- Relative number (R)
- 162
- Observer
- GT
- Reading
- all checks consistent
- File
- 19780226.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | C – 7 | 39 | 04E | 194 | 02E | ||
| 2 | B – 2 | 16 | 28E | 170 | 26E | ||
| 3 | J – 1 | 20 | 53E | 145 | 51E | ||
| 4 | J – 1 | -24 | 59E | 139 | 57E | ||
| 5 | J – 3 | -22 | 36E | 162 | 34E | ||
| 6 | H – 11 | -20 | 14E | 184 | 12E | ||
| 7 | C – 35 | 19 | 30W | 228 | 32W | ||
| 8 | J – 11 | 22 | 20W | 218 | 22W | ||
| 9 | A – 1 | 20 | 11W | 209 | 13W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.