Daily Sunspot Evaluation
Observation Sheet Saturday, 27 March 1971
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)
- 5
- Number of spots (f)
- 32
- Relative number (R)
- 82
- Observer
- MA
- Reading
- all checks consistent
- File
- 19710327.jpg
Sunspot groups
| No | Group (class – spots) | B | Δ L | L | Δ Lf | U | Margin no. |
|---|---|---|---|---|---|---|---|
| 1 | J – 1 | 26 | 46E | 39 | |||
| 2 | A – 1 | -13 | 26E | 59 | |||
| 3 | D – 20 | -19 | 54E | 31 | |||
| 4 | C – 8 | -14 | 19E | 66 | |||
| 5 | J – 2 | -8 | 42W | 127 |
Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.