The moon was fading out of sight behind a solid bank of cloud; and she was happy for that, for even without riding lights the bulk of the Red Diamond would be noticeable under a moonlit sky.
Definition of riding light in US English:
riding light
noun
A light shown by a ship at anchor.
锚灯，锚泊灯
Example sentencesExamples
The moon was fading out of sight behind a solid bank of cloud; and she was happy for that, for even without riding lights the bulk of the Red Diamond would be noticeable under a moonlit sky.