Skywatchers will have a unique opportunity to observe the moon moving in close proximity to the bright red supergiant star Antares on the evenings of August 30 and 31, 2023. As the moon approaches its first quarter phase, it will appear nearly half-lit, creating a striking celestial display in the southwestern sky.
On the evening of August 30, the moon will be positioned less than 20 degrees above the horizon at sunset. Antares, known for its vivid red hue, will be visible approximately 5 degrees to the upper left of the moon. For reference, the width of your middle three fingers held at arm’s length equals about 5 degrees in the night sky, while a clenched fist measures around 10 degrees.
The moon officially reaches its first quarter phase at 2:25 a.m. (0625 GMT) on August 31. At this moment, the right side of the lunar disk will be fully illuminated, showcasing the ancient basaltic plains of Mare Serenitatis and Mare Tranquilitatis. In stark contrast, the left side will remain shrouded in darkness.
Exploring the Celestial Event
As night falls on August 31, the moon will have shifted to the left of Antares, enhancing the visual spectacle for observers. Antares ranks among the brightest stars visible to the naked eye in the northern hemisphere and is famously referred to as the “heart of the scorpion” due to its central location within the constellation Scorpius. In reality, Antares is a binary star system, comprising a red supergiant star and a white main sequence companion, although the red giant’s light dominates our view from Earth.
Following its encounter with Antares, the moon will glide eastward, passing through the constellations of Sagittarius, Capricornus, and Aquarius, as it heads toward its full moon phase on September 7. This event will coincide with a total lunar eclipse, during which Earth will pass directly between the moon and the sun, casting the moon into shadow. This phenomenon often results in a striking “blood moon” appearance.
Preparing for the Viewing Experience
For those wishing to enhance their viewing experience, the Celestron NexStar 8SE telescope is highly recommended. This device is suitable for beginners seeking quality and reliable observations of celestial bodies. More information on the telescope can be found in reviews available online.
Photographers eager to capture the moon and Antares together should consider reading guides on how to effectively photograph a lunar eclipse. Additionally, those looking to upgrade their astrophotography equipment can explore curated lists of the best cameras and lenses suited for celestial photography.
This celestial event not only offers a beautiful sight but also serves as a reminder of the wonders of our universe. Observing the moon and stars connects us to the larger cosmos, inviting everyone to take a moment to appreciate the beauty above.
