The derivation chukka<s'ukra sounds convincing and compelling in the interpretation of the idiom chukkeduru. It is an astrological belief that travelling in the direction facing the planet Venus (which appears similar to Moon even in daylight in the sky) leads to reversal of fortune or misfortune. There is another idiom chukka podduna lEchi. podduna = at the rise of /in the morning; lEchi =waking up, chukka podduna lEchi =waking up at the rise of chukka, Chukka=star does not work here.
chukka = a small drop, dot, star , a dEs'ya (native, not borrowed) word is well known.
chukka<s'ukra seems to be a tadbhava (Sanskrit/Prakrit-derived) homophonous with the above dEs'ya word.