Pre-dawn sky show: Mars, Jupiter, and Regulus line up on October 16
Before sunrise on October 16, observers can see Mars, Jupiter, and the star Regulus arranged in an almost straight line toward the southeast. Jupiter will sit between Mars and Regulus, and the best viewing window begins at least 90 minutes before local sunrise. Mars and Jupiter will keep closing in on each other, reaching a close pairing on November 16 when they appear about 1.2 degrees apart.
Before dawn on October 16, skywatchers looking southeast can see Mars, Jupiter, and Regulus form an almost straight line. Jupiter appears between reddish Mars and Regulus, Leo’s brightest star. Viewing improves starting roughly ninety minutes before sunrise.
Mars and Jupiter continue converging, with their closest apparent meeting set for November 16, when they will look about 1.2 degrees apart. For scale, an outstretched fist covers about 10 degrees of sky. Later, on October 31, Mars moves into Leo.
The alignment may give casual skywatchers a low-cost reason to look up before dawn, potentially sparking curiosity about planetary motion. Astronomy clubs, educators, and planetarium staff could use the event to host early sessions or share viewing tips. Its gradual Mars-Jupiter approach may sustain attention through mid-November, though weather and light pollution could limit who actually sees it.