Fiery Harmony: Exploring Libra and Sagittarius Compatibility Undoubtedly, a combination of two zodiac signs brings us an exciting rollercoaster ride of feelings, emotions, opinions, and values. But its a treat watching such distinctiveness in a celestial couple like Libra and Sagittarius! When Sagittarian's ruling planet Jupiter, a planet of adventure, growth, and expansion, is supported by Libra's planet of love, harmony, and beauty, ie.