in March by J. G. Porter , Ph.D., F.R.A.S.
This month Dr. Porter talks chiefly about double stars.
The diagram shows the constellation of Gemini as seen high in the southern sky at about 8.o p.m.
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in March by J. G. Porter , Ph.D., F.R.A.S.
This month Dr. Porter talks chiefly about double stars.
The diagram shows the constellation of Gemini as seen high in the southern sky at about 8.o p.m.
