Witness the harmonious spectacle as the moon and Mars unite in the embrace of a shared sunset tonight. As the waxing crescent moon journeys towards the weekend, it draws near to the Red Planet, forging a close bond that will be on full display.
On Friday, August 18, from the vantage point of New York City, this celestial companionship will unfold. The moon and Mars will grace the sky shortly after emerging above the horizon at approximately 8:35 a.m. EDT (1235 GMT), and their union will persist throughout the day and the ensuing sunset. Just before the clock strikes 9:01 p.m. EDT (0101 GMT), they will gradually dip beneath the horizon, their luminous connection lingering in the twilight.
For those eager to witness this celestial choreography, the western horizon is your canvas. As the sun bids farewell for the day, seek out the moon, but ensure an unobstructed view of the horizon. Mars, a tad fainter, will nestle just below and to the left of the moon. And if you're feeling particularly adventurous, turn your gaze towards the distant Mercury, a fainter and more delicate presence compared to Mars. This innermost denizen of our solar system will position itself approximately 6 degrees below the moon, a span roughly half the width of your outstretched hand.
The moon, a mere three days young in its waxing crescent phase, will cozy up to Mars at a proximity of about 1 degree, a distance smaller than the width of a finger seen from arm's length. Amidst this close encounter, both moon and Mars will find themselves within the embrace of the Pisces constellation. The moon will radiate with a brilliance of -9.5 (a minus sign indicating its luminosity surpassing Earth's), while Mars will exhibit a subtler glow at a magnitude of 1.8. Meanwhile, Mercury, if discernible, will outshine Mars slightly with a magnitude of 0.6.
Separated by a distance of 29 degrees from the setting sun within the Leo constellation, the pairing of moon and Mars will tantalize observers. Despite their apparent closeness, their spatial relationship remains distant enough to evade simultaneous capture in a telescope's eyepiece. However, with binoculars, the spectacle should grace your field of vision.
Simultaneously, as this close approach occurs, the two celestial bodies will align in an event astronomers term a conjunction—a celestial version of longitude, where they share the same right ascension in the sky.
The nearness of Mars and the moon on this Friday is a consequence of our Earth-bound perspective of the solar system. While the average Earth-moon distance hovers around 238,855 miles (384,400 kilometers), the gap separating us from Mars, the fourth planet from the sun, stretches to around 140 million miles (225 million kilometers) on average. Presently, Mars extends about 226 million miles (365 million kilometers) away, according to The Sky Live.
Come mid-October 2023, Mars will reach its utmost distance from Earth, spanning approximately 240 million miles (381 million kilometers). However, the Red Planet will draw intimately close to Earth and the moon by mid-January 2025, when they will stand separated by roughly 60 million miles (96 million kilometers).
For those eager to partake in this celestial rendezvous, our guide to premier binoculars offers a promising starting point. Likewise, if your curiosity urges you to gaze even deeper, our guide to superior telescopes can guide you towards the optimal optical equipment.
Should capturing this celestial dance through photography capture your imagination, our guide on photographing the moon and our recommendations for astrophotography cameras and lenses await your perusal.
Editor's Note: If you manage to capture a snapshot of the moon and Mars's close encounter and wish to share it with the readers of Space.com, kindly send your photos, insights, along with your name and location, to [email protected].
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