December Skywatch: Geminid Meteors, Solstice & Moon Magic
December Skywatch: Geminid Meteors, Solstice & Moon Magic
Hello, sky-watchers of Latin America and the Caribbean! December wraps up the year with one of the best meteor showers, the winter solstice and another round of planet–Moon pairings and lunar phases. Whether you’re observing from Santiago, Santo Domingo or San José, here’s your friendly, day-by-day guide to the month’s highlights. Clear skies!December 3: Moon meets the Pleiades (M45)
As evening twilight fades on December 3, look high in the southwest for a slender waxing gibbous Moon nestled just above the misty glow of the Pleiades star cluster. Through binoculars, you’ll enjoy the contrast of the Moon’s bright limb against dozens of blue-white suns.December 4: Full Moon
December’s Full Moon rises at sunset on the 4th, flooding the night with soft silvery light. It’s the perfect night for a moonlit stroll or a festive gathering—binoculars will reveal the dark lunar “seas” contrasting with the bright highlands.December 7: Jupiter meets the Moon
Before dawn on December 7, scan the eastern sky to see shimmering Jupiter passing just below a waning gibbous Moon. This easy naked-eye sight becomes even more charming through binoculars as you frame both in the same view.December 11: Last Quarter Moon
By December 11 the Moon has waned to Last Quarter, rising around midnight with its left half illuminated. The subtle side-lighting along the terminator brings craters and mountains into dramatic relief—ideal for late-night lunar exploration.December 13–14: Peak of the Geminids Meteor Shower
One of the year’s most reliable meteor showers peaks overnight December 13 into 14. The Geminids blaze down from the constellation Gemini, often producing up to 120 meteors per hour under dark skies. Wrap up warm and settle in after midnight for the best show.December 20: New Moon
The New Moon on December 20 slips into the Sun’s glare, leaving the sky beautifully dark. It’s your best window all month to hunt faint deep-sky treasures—galaxies, nebulae and star clusters will pop in even small telescopes.December 21: December Solstice
Mark the solstice on December 21—the Sun reaches its southernmost point, ushering in summer for the Southern Hemisphere and winter for the north. It’s the shortest day north of the Equator, so rise early if you want to catch sunrise due east!December 21–22: Peak of the Ursids Meteor Shower
Late on December 21 into 22, the Ursids meteor shower peaks from the constellation Ursa Minor. Though more modest—around 5–10 meteors per hour—the Ursids can surprise with bright, slow-moving fireballs. Look north after midnight for the best view.December 26: Saturn meets the Moon
In the pre-dawn sky of December 26, a waning crescent Moon drifts just south of golden Saturn. Binoculars will nicely frame the planet’s pale disk beside the Moon’s slender arc—an enchanting sight before sunrise.December 27: First Quarter Moon
By December 27 the Moon returns to First Quarter, appearing half-illuminated at sunset. With binoculars, follow the terminator to trace dramatic shadows across crater walls and mountain peaks.December 31: Moon meets the Pleiades (M45)
Cap off the year on the evening of December 31 by revisiting the Pleiades—this time a slim waxing crescent Moon will hang just below the cluster. It’s a lovely way to ring in the New Year under glittering winter skies.For full details—exact times, viewing tips, and more—please refer to Celestron’s 2025 Celestial Calendar and 2025 Moon Calendar.
Catch last month’s skywatch highlights here, and don’t miss November's upcoming cosmic wonders in our next post. Happy observing!.