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Halley's comet has an elliptical orbit with the sun at one focus.
The major and minor axes of the orbit have lengths of 768,000 kilometers and 767619 kilometers respectively.
Find the greatest and least distance from Earth's center to the moon's center then graoh the orbit of the moon.
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Regarding Halley's comet, Wikipedia https://en.wikipedia.org/wiki/Halley%27s_Comet gives another data:
Aphelion 35.08 AU (AU = astronomical unit = 149597870700 meters (about 150 million kilometers)
Perihelion 0.586 AU
which has nothing common with your data.
Secondly, the first part of your post relates the parameters of the orbit to the sun as the focus of the comet's elliptical orbit,
while the second part of the post asks about the distances from the Earth to the moon.
Conclusion. This post is nonsense and does not deserve any serious consideration.