The Red Planet reaches the border of Cancer and Leo; tomorrow it will have crossed the line into the Lion, sharing it with Jupiter.

| Published: October 30, 2026

Mars stands at the border of Cancer and Leo the morning of the 30th, preparing to join bright Jupiter in the latter by tomorrow. Together with Regulus, the three points of light form a line in the early-morning sky. Credit: Stellarium

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October 29: Open cluster Collinder 463

Magnitude 0.8 Mars, currently tracking eastward through the sky, now stands at the border of Cancer and Leo. It is still within the bounds of the Crab this morning, roughly 60° high in the southeast and just over 6° to the upper right of brighter Jupiter in Leo, about 90 minutes before sunrise.

To Jupiter’s east (lower left) is magnitude 1.4 Regulus, the brightest star in the Lion, which also serves as the great cat’s heart.…