Skywatchers have a limited opportunity on June 12 to observe a celestial alignment featuring Mercury, Venus, and Jupiter. These three planets will appear low in the western sky shortly after sunset, forming a mini planetary parade along the ecliptic.
A brief celestial show
While Venus and Jupiter have recently moved apart following a closer alignment on June 9, Mercury has risen from the sun’s glare to join them. Together, they will present a noticeable slanted line in the west-northwestern sky. The optimal viewing period begins approximately 30 minutes after local sunset and will last for only about 30 to 45 minutes before Jupiter and Mercury descend below the horizon.
Observers are advised to look for the bright planet Venus first, as it should be visible even while the sky remains relatively light. Below and slightly to the right of Venus, Mercury and Jupiter will also be discernible.
Telescopic and photographic perspectives
For those equipped with telescopes or imaging devices, June 12 offers a chance to compare the distinct appearances of the three planets. Venus will present as a gibbous disk, about 80% illuminated and intensely bright. Mercury will appear as a stark contrast, showing a phase similar to a half-moon, with approximately 50% illumination. Successfully resolving Mercury’s small, half-illuminated disk in the twilight is noted as a notable achievement for amateur astronomers.
Jupiter will appear as a larger disk, though its low altitude may cause atmospheric distortion, potentially blurring details. Under stable atmospheric conditions, advanced imagers might capture glimpses of Jupiter’s equatorial cloud belts, alongside the sharp outline of Mercury.
Photographers interested in capturing the event are encouraged to use a wide-angle lens or a prime lens between 50 mm and 85 mm on a DSLR or mirrorless camera. The focus for photography on this date is on landscape composition, framing the planets as a cosmic ladder rising above a terrestrial silhouette, such as a mountain range, city skyline, or trees, while exposing for the twilight sky colors.
Norman Pearlstine is the Chief Editor of News Raise and focuses on Business news. His responsibility is to oversee the editorial content including business, commodities, personal investments and the stock market.
