This weekend promises an extraordinary celestial spectacle, as skywatchers will be treated to a stunning alignment of the waxing crescent moon and Antares, the brightest star in the constellation Scorpius. This event, set to unfold on Sunday evening, August 3, 2025, is a spectacle that will be visible to the naked eye from much of the world.According to Forbes, these two celestial bodies will appear close to one another in the sky, marking a moment of beauty for both amateur and seasoned stargazers alike. Although it’s not uncommon for the moon to pass near bright stars in the night sky, the proximity of Antares — a red supergiant — to the moon offers a particularly striking visual treat.
As we prepare for this event, it is worth noting that Antares—often called a “rival to Mars” due to its reddish-orange hue—has captivated observers for centuries. As it lies about 550 light-years away from Earth, it stands as a testament to the vastness of our universe. The sight of Antares in such close proximity to the moon invites us to reflect on the remarkable cosmic dance between Earth, the moon, and distant stars. Whether you’re a seasoned astronomer or a casual observer, this event presents an opportunity to gaze upon one of the sky’s most awe-inspiring pairings.
A Celestial Dance: The Waxing Crescent Moon Meets Antares
On the evening of August 3, look to the southwest just after sunset to witness a sky show like no other. The waxing crescent moon will shine brightly, and just above it, Antares, a red supergiant star, will be perched. The two objects will be so close that they will appear to nearly touch, a rare sight for casual skywatchers. Antares, glowing with its distinct red-orange hue, is impossible to miss. It will shine at magnitude 1.1, one of the brightest stars visible to the naked eye. As twilight deepens, these celestial objects will slowly sink towards the horizon, making the sight even more transient and special.
This event is part of a recurring phenomenon, where the moon passes in close proximity to bright stars along the ecliptic, the path it follows across the sky. Stars such as Aldebaran (in Taurus), Regulus (in Leo), Spica (in Virgo), and now Antares all lie along this same path. As a result, stargazers around the world have the chance to see these stars paired with the moon, making for a predictable yet always breathtaking sight in the sky. The exact positioning of Antares and the moon on this date, however, will make this event particularly striking and noteworthy.
How to Observe This Spectacle: Tips for Stargazing
While the idea of observing celestial events often brings to mind the need for a telescope, this moon-Antares pairing is one that can be viewed with the naked eye. However, for those who wish to enhance their experience, binoculars are recommended. Binoculars can bring the features of the moon into sharper focus, allowing you to see more details of its surface. Additionally, binoculars provide a closer look at the red giant star, revealing its intense red hue, which might appear to shift in color due to the Earth’s atmosphere.
Choosing an ideal location for observation is key to getting the best view of the event. Skywatchers should look for a location with a clear, unobstructed view to the southwest, preferably away from city lights. Light pollution can have a significant effect on how well we can see stars and planets, but in the case of the moon and bright stars like Antares, the visual impact remains striking even in areas with some light pollution. As the two celestial objects begin to set, they will drift lower in the sky, creating a fleeting visual that will make this sky show even more precious.
Antares: A Red Supergiant Star Like No Other
Antares, the star shining above the moon this weekend, is a red supergiant that stands out due to its immense size and vibrant color. Located approximately 550 light-years away, Antares is one of the most massive stars visible from Earth. It is often referred to as the “heart” of the Scorpius constellation, and its reddish-orange hue makes it an unmistakable feature of the night sky. While Antares shares this color with Mars, it is far larger and brighter, with its size and luminosity far exceeding that of our home planet.
Despite its proximity to Earth in the cosmic sense, Antares is still so far away that its light takes hundreds of years to reach us. Its impressive size and brightness also contribute to its historical significance in the study of stellar evolution. In fact, Antares is in the late stages of its life cycle, nearing the end of its evolution as a supergiant star. Eventually, it will undergo a supernova explosion, marking a spectacular end to its life.
What’s Next in the Sky: More Phenomena to Look Out For
While the moon-Antares pairing on August 3 is a notable event, it’s far from the only one to look out for this month. In the days leading up to the full sturgeon moon on August 9, Vega, the brightest star in the Summer Triangle, will be easily visible in the southeast after dark. Another exciting event is the Perseid meteor shower, which will reach its peak on the nights of August 12-13, though its visibility will be partially hampered by the bright light of the moon. For those interested in observing shooting stars, the best nights may be slightly later, around August 15, when the moonlight will be less intense.
Moreover, the conjunction of Jupiter and Venus on August 12 promises a celestial event that could rival the moon and Antares in beauty. The two planets will appear to move closely together in the sky, offering yet another exciting moment for those interested in stargazing. Using resources like the Stellarium Web and Night Sky Tonight can help you track the timings and positions of these events, ensuring that you don’t miss any of the action.