A thin crescent Moon will appear in the western sky on June 17 alongside Mercury, Jupiter and Venus, forming a layered evening alignment visible shortly after sunset. The Moon will also pass directly through the Beehive open star cluster.
The event unfolds along the plane of the solar system, where the Sun, Moon and planetstrace similar paths across the sky. This geometry often produces visual groupings, but the presence of a young crescent Moon within a rich stellar cluster adds an unusual observational combination for skywatchers with clear horizons.
According to the source material, the Beehive Cluster (M44) containsaround 1,000 stars and sits in the constellation Cancer. Its position along the ecliptic allows the Moon to pass through it on occasion, producing a brief alignment that can be followed over the course of a single evening.
Planets Visible In Western Dusk
Shortly after sunset on June 17, Mercury appears very low on the western horizon, embedded in the bright glow of twilight. It is the first object in the sequence to disappear, setting within roughly two hours after sunset. According to the Space.com report, this rapid disappearance is typical of Mercury’s close proximity to the Sun, which keeps it low in the sky from an Earth-based perspective.
Higher in the sky, Jupiter appears as a steady bright point of light, with Venus positioned further along the same general alignment. The crescent Moon completes the visual arrangement, forming a diagonal pattern that extends upward from the horizon. The source describes this grouping as a striking planetary sequence, though the distances between each object remain vast in physical space.
The Beehive Cluster sits behind this arrangement, adding a faint scattering of stars around the Moon’s path. The same source explained that the Moon remains visible for about one additional hour after Mercury sets for observers in the United States, before it finally drops below the western horizon.
Earthshine with Binocular Cluster Viewing
The crescent Moon may display a soft glow across its night side due to earthshine. This faint illumination occurs when sunlight reflected from Earth reaches the Moon’s dark surface, making its full outline more perceptible against the twilight sky. The effect becomes easier to notice as the sky darkens further after sunset.
Binoculars can significantly enhance the view of this region. Based on the report, 10×50 binoculars are capable of revealing dozens of stars from the Beehive Cluster surrounding the Moon. These stars, normally difficult to distinguish individually with the naked eye, become more structured when magnified, giving a clearer sense of the cluster’s density.
A small telescope, around 4 inches in aperture, adds further detail. The same source notes that such an instrument can reveal cloud bands on Jupiter along with its four largest moons, known as the Galilean satellites. These features remain invisible without optical aid but become distinct under stable viewing conditions, especially when atmospheric turbulence is low.
Shifting Positions After The June 17 Alignment
Following the June 17 alignment, the Moon continues its eastward motion away from the Beehive Cluster and Venus. It moves toward the constellation Leo, approaching the bright star Regulus, a multi-star system located at the heart of Leo that serves as a key reference point in the night sky.
Meanwhile, the planets continue their gradual repositioning along the ecliptic. Mercury sinks closer to the horizon each evening, making it progressively harder to observe after sunset. At the same time, Venus shifts through the constellation Cancer, slowly separating from Jupiter as the alignment disperses.
The source also notes a later close approach between Venus and Regulus on July 9, when the planet passes within about one degree of the star system.
