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Sky at Night: How Long is a Day?

BBC One
on BBC One London

Recent studies suggest that the day on Mercury may be two months long. Patrick Moore discusses how this affects our ideas of conditions on Mercury, and how its length of day compares with that of other planets.

Contributors

Presenter:
Patrick Moore
Special drawings:
Paddy Cullen
Special drawings:
L. F. Ball
Director:
Julia Cave
Producer:
Paul Johnstone
Source: Radio Times

BBC One London

About BBC One

BBC One is a TV channel that started broadcasting on the 20th April 1964. It replaced BBC Television.

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