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  • BBC Sky at Night

    MOONWATCH

    Jan 20, 2022 2 minutes

    Walther

    Type: Crater

    Size: 141km

    Longitude/Latitude: 0.6° E, 33.2° S

    Age: Approximately 3.9 billion years

    Best time to see: First quarter (8-9 February) or six days after full Moon (22-23 February)

    Minimum equipment: 10x binoculars

    is a large, rugged crater located 440km northeast of the prominent 86km ray crater Tycho. It sits within the

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