Daily Sunspot Evaluation

Observation Sheet Friday, 29 July 1966

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)
6
Number of spots (f)
37
Relative number (R)
97
Observer
LT
Reading
all checks consistent
File
19660729.jpg
29.07.1966 photosphere drawing

Sunspot groups

NoGroup (class – spots) BΔ LLΔ LfU Margin no.
1J – 2 3622°E 205
2H – 18 2658°E 169
3D – 9 2872°E 155
4A – 2 2160°W 287
5H – 3 2236°W 257
6H – 3 3857°W 244

Class as written on the sheet (? = group the observer marked as uncertain). ⚠: the coordinates of this row do not agree with each other.

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