Monday, July 21, 2025

New Moon Arrives, Jupiter Shines, and Pluto Hits Opposition

A crescent moon bookends the week, while Pluto reaches peak visibility far beyond the sun.
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July 21, 2025
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What's Up This Week?
Hello Skywatchers!

This week offers a serene mix of moon phases, planetary pairings, and a distant milestone. It begins with a razor-thin crescent moon pairing with Jupiter before sunrise on Wednesday, and ends with the young moon shining next to Regulus after sunset on Saturday. In between, Thursday brings the new moon, the darkest skies of the month, and on Friday, distant Pluto reaches opposition, marking its brightest (if still incredibly faint) appearance of the year. From pre-dawn photo ops to deep-sky challenges, the cosmos offers something for every skywatcher this week.

Here's what to watch for this week.

Clear skies,

Daisy

Reference Editor, Space.com

Wednesday, July 23 — Sliver of Moon Meets Jupiter (pre-dawn)
(Starry Night)

Look east before sunrise to see a delicate crescent moon just 2.5% illuminated, shining about 5 degrees to the left of brilliant Jupiter. The pair will fit together in binoculars, making for a lovely early morning view.

Full Story: Space (10/1) 
Thursday, July 24 — New Moon
(Starry Night)

The moon reaches its new phase at 3:11 p.m. EDT (19:11 GMT), disappearing from view as it aligns between Earth and the sun. Enjoy moonless skies in the evening, perfect for stargazing or hunting faint galaxies.

Full Story: Space (10/1) 
Friday, July 25 — Pluto at Opposition (all night)
(Starry Night)

Tiny Pluto reaches opposition, sitting directly opposite the sun as viewed from Earth. It's at its closest and brightest for the year, but still incredibly faint at magnitude +14.4, visible only with large telescopes. It's currently in Capricornus, near Psi Capricorni and Messier 75.

Full Story: Space (10/1) 
Saturday, July 26 — Slim Crescent Moon Near Regulus (after sunset)
(Starry Night)
After sunset, a slender crescent moon appears low in the western sky. Look closely to spot Regulus, Leo's brightest star, just to its lower right. Binoculars offer the best view, especially from tropical latitudes.
Full Story: Space (10/1) 
Moon Calendar
Space.com

The new moon arrives on Thursday, July 24, marking the start of a fresh lunar cycle. With the moon completely hidden in the sun's glare, this is the best time of the month for deep-sky observing. After the new moon, a young crescent will return to the evening sky, ideal for early-evening viewing and astrophotography.

Want to explore our lunar neighbor in more detail? Check out our ultimate guide to observing the moon.

 
Full Story: Space (2/22) 
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