Daily Sunspot Evaluation
Observation Sheet Monday, 27 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)
- 7
- Number of spots (f)
- 64
- Relative number (R)
- 134
- Observer
- FA
- Reading
- all checks consistent
- File
- 19780227.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 19 | 38E | 147 | 37E | ||
| 2 | J – 2 | -24 | 44E | 141 | 43E | ||
| 3 | J – 7 | -22 | 22E | 163 | 21E | ||
| 4 | H – 11 | -19 | 00W | 185 | 01W | ||
| 5 | D – 18 | 17 | 46W | 231 | 47W | ||
| 6 | B – 13 | 22 | 34W | 219 | 35W | ||
| 7 | D – 12 | 37 | 09W | 194 | 10W |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.