Hathor’s bovine attributes are completely consistence with a ring of debris insofar as Hathor was many times seen to ‘suckle’ celestial bodies
I would be more inclined to believe that Hathor represents the Zodiacal light, which is the reflection of light from the remaining dust of comets along the ecliptic. See this diagram.
Here on the right, you can see the sun, stationed between the "horns" of the dust that makes up the zodiacal light, as viewed from earth.
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