This was
your sky.
Unexpected X-Rays from Perseus Galaxy Cluster
The Perseus galaxy cluster emits an unexpected glow in a specific color of X-rays. This 3.5 Kilo-electronvolt (KeV) X-ray color appears excessively bright in regions outside the cluster's center, while the area around the central supermassive black hole is deficient in it. One debated hypothesis suggests these X-rays could be a clue to the identity of dark matter.
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In tropical astrology, 2 JAN 2018 falls under Capricorn (♑). The sign's window runs from 12-22 through 01-19. Capricorn is the dimmest zodiac constellation, but rich in deep-sky objects south of the celestial equator. The Sun was crossing this region of the sky on 2 JAN 2018.