Mercury–Jupiter Conjunction June 23–24, 2026: How to See Two Planets 0.8° Apart in Gemini | Telescope Advisor
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Jupiter and its four Galilean moons — a family portrait from NASA, representing the giant planet that Mercury pairs with in June 2026

Sky Event Guide · June 2026

Mercury–Jupiter Conjunction June 23–24, 2026: Two Inner Planets 0.8° Apart in the Twilight Sky

Mercury and Jupiter — the smallest and largest planets in the Solar System — appear separated by less than a lunar diameter on June 23–24, 2026. This is the closest planetary pairing of the month and one of the year's best opportunities to spot elusive Mercury with a brilliant planet as your guide.

Closest approachJune 23–24, 2026
Separation~0.8° (1.6 lunar diameters)
Where to lookWNW horizon, 30–40 min after sunset
ConstellationGemini
By Telescope Advisor Editorial Team Published: Updated: Editorial Standards

Quick Answer: How to See Mercury and Jupiter Together on June 23–24, 2026

Look west-northwest starting 30 minutes after local sunset on June 23 or June 24. Mercury and Jupiter will be just 0.8° apart — less than twice the width of the full Moon — low in the twilight sky. Jupiter (magnitude −1.7) serves as your signpost: find Jupiter first, and Mercury will be immediately to its lower left or upper right depending on the exact night.

Binoculars are the ideal tool for this event. A 10×50 or 15×70 pair easily fits both planets in a single wide field, and binoculars work much better than a telescope for such a low-altitude twilight target. The Celestron SkyMaster 15×70 is our top recommendation because its 4.4° field comfortably frames the pair while 15× magnification reveals Jupiter's four Galilean moons as separate pinpricks beside the planet's disk.

This is also your best chance of the year to see Mercury if you have never spotted it. Mercury is the most elusive naked-eye planet because it never strays far from the Sun. But on June 23–24, Jupiter — impossible to miss — points directly to Mercury. Once you find Jupiter, Mercury is literally in the same binocular field, less than one degree away.

Naked eye

Jupiter is easy at magnitude −1.7. Mercury at magnitude +0.3 is challenging but visible from a dark site with clean horizon. Use Jupiter as your pointer.

Binoculars (best tool)

Both planets fit in one view. 10×50 shows Mercury's tiny disk and Jupiter's four moons. 15×70 adds detail to both.

Telescope (advanced)

A short refractor at low power frames both planets but the low altitude makes atmospheric distortion significant. Best for observing each planet individually at higher power.

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What Is the Mercury–Jupiter Conjunction of June 23–24, 2026?

A planetary conjunction happens when two planets appear close together in the sky as seen from Earth — not because they are physically near each other in space (Mercury is ~0.6 AU from Earth in late June 2026; Jupiter is over 5 AU away), but because our line of sight aligns them in the same direction. The Mercury–Jupiter conjunction of June 23–24, 2026 is special because the two planets approach to within 0.8° — less than twice the apparent diameter of the full Moon — making them one of the tightest planetary pairings of the entire year.

The conjunction occurs in the constellation Gemini, the twins, which is fitting for a pairing of the Solar System's smallest and largest planets. Mercury appears as a modest +0.3 magnitude point of light, while Jupiter dominates at magnitude −1.7, outshining every star in the evening sky except Venus (which has already set by the time the Mercury–Jupiter pairing becomes visible).

This event is the follow-up to Mercury's greatest eastern elongation on June 15, 2026, when Mercury reached its farthest angular separation from the Sun (~23°). After that peak, Mercury began a slow drift back toward the Sun's glare. But before it disappears into twilight, it passes close to Jupiter — giving observers a second, equally valuable opportunity to spot Mercury with a bright planetary guide.

Conjunction Fast Facts

Closest approachJune 23–24, 2026
Separation~0.8° (~1.6 lunar widths)
Mercury magnitude+0.3
Jupiter magnitude−1.7
ConstellationGemini
Where to lookWNW, ~8–12° above horizon
Visible window~30–45 min after sunset
Best tool10×50 or 15×70 binoculars
Moon phase June 23Waxing gibbous (not interfering)

Why This Conjunction Matters for Mercury Observers

Mercury is famously the most difficult naked-eye planet to observe. It never appears more than about 28° from the Sun, which means it is always embedded in twilight when visible, low on the horizon, and easily lost in atmospheric haze. Many experienced amateur astronomers have never positively identified Mercury with the naked eye. This conjunction changes the game: Jupiter, unmistakably bright, acts as a celestial arrow pointing straight to Mercury.

Here is why the June 23–24 pairing is exceptional for Mercury seekers:

Jupiter as a signpost

Jupiter at magnitude −1.7 is the second-brightest planet in the sky after Venus. You can find Jupiter even from a moderately light-polluted suburb. Mercury sits just 0.8° away — less than the width of your thumb at arm's length. If you can see Jupiter, you are already looking at Mercury's exact location.

Post-elongation timing

Mercury reaches greatest eastern elongation on June 15, when it sits ~23° from the Sun. By June 23, it has moved closer to the Sun (~18°) but remains visible in bright twilight. The conjunction catches Mercury before it vanishes entirely, maximizing your window to find it.

Photogenic framing

At 0.8° separation, both planets fit in a single camera frame even at moderate telephoto focal lengths (100–200mm). The color contrast between Mercury's pale gray-white and Jupiter's warm cream tone makes a striking twilight composition.

Scientific perspective

Observing Mercury and Jupiter together is a vivid demonstration of the Solar System's scale. Mercury's tiny disk (5.1 arcseconds) versus Jupiter's 32-arcsecond disk through a telescope shows the 30:1 diameter ratio in real time — a perspective no textbook can match.

Event Timeline: Watch the Pair Approach, Conjoin, and Separate

The Mercury–Jupiter conjunction builds over several days, giving you multiple opportunities even if June 23 or 24 is cloudy. The two planets are visibly converging from about June 20 onward.

Date (2026) Separation What's Happening
June 15 ~10° Mercury at greatest eastern elongation (~23° from Sun). Full elongation guide →
June 20 ~4° Both planets fit in a 7×50 binocular field. Mercury is visibly approaching Jupiter from below.
June 22 ~1.8° Both planets fit in a 10×50 binocular field. Naked-eye observers begin to notice the pair.
June 23 (peak) ~0.8° Closest approach. Mercury and Jupiter fit in a single low-power eyepiece. Best photography night.
June 24 (peak) ~0.8° Second night of close pairing. Separation barely changes from June 23. Equally good viewing.
June 25 ~1.5° Pair beginning to separate. Mercury now above Jupiter in the evening sky.
June 28 ~5° Mercury fading fast as it descends toward the Sun. Jupiter heading toward solar conjunction on July 12.

Cloud-out insurance: start watching June 20

The pair is visually interesting from June 20 onward. If June 23–24 is overcast, you can still see a beautiful converging pair on June 22 or a separating pair on June 25. The separation changes slowly enough that any clear evening between June 21 and June 26 will show an obvious pairing.

How to Find Mercury and Jupiter in Gemini

Finding this pair is a straightforward two-step process, but the low altitude and bright twilight require a careful approach.

Step 1: Locate the WNW Horizon

Before sunset on June 23 or 24, identify where the Sun sets — that's your west-northwest (WNW) reference point. The planets will be approximately 15° to the left (south) of the sunset point and 8–12° above the horizon. Scout your location during daylight. Any building, tree line, or hill to your west that blocks the bottom 10° of the sky will seriously compromise your view.

Step 2: Find Jupiter, Then Mercury

About 30 minutes after sunset, scan the WNW sky with your eyes. Jupiter will be the brightest point of light in that region — it is unmistakable. Once you have Jupiter in binoculars, Mercury will appear in the same field of view. On June 23, Mercury is just below and slightly to the right of Jupiter. On June 24, the positions swap slightly as Mercury moves relative to Jupiter.

If you are using a telescope, start with your lowest-power eyepiece (widest field) and center Jupiter. With a short-focal-length refractor (400–500mm), both planets should be visible in the same eyepiece at 20–25×. With a longer focal length scope, you may need to switch between the two planets one at a time.

What to Look For in the Sky

The constellation Gemini provides the backdrop for this conjunction. The two bright stars Castor and Pollux — marking the heads of the twins — will be visible higher in the sky above the pair. Jupiter and Mercury sit near the feet of Gemini, creating a diagonal line from Pollux down to the planet pair. Use this asterism as your celestial roadmap.

Finder Tips

  • • Start early: Begin scanning 25 minutes after sunset. The darker it gets, the lower the planets sink.
  • • Use binoculars first: Find Jupiter in 10×50s, then look for Mercury in the same field. Once found, try naked-eye.
  • • Check the forecast: Low clouds, haze, or smoke at the horizon will ruin the view. Choose a clear evening.
  • • Elevation helps: A rooftop, hilltop, or elevated park adds precious degrees of clear horizon.
  • • Use a planetarium app: Stellarium, SkySafari, or Starlight give you real-time exact positions for your location.

Safety reminder: the Sun is nearby

Mercury is only about 18° from the Sun on June 23. While the Sun has set below the horizon during your viewing window, the twilight glow means you should never sweep binoculars or a telescope finder scope across the sky without knowing exactly where the Sun is. The Sun has already set, so this is safe during the recommended 30–45 minute post-sunset window — but do not attempt to locate Mercury earlier in full daylight without proper solar filters.

Best Binoculars for the Mercury–Jupiter Conjunction

Binoculars are the clear winner for this event. They frame the 0.8° separation with room to spare, work well in the challenging twilight (large exit pupil helps), and can be used handheld — critical for a low-altitude target where setting up a tripod costs precious minutes. These two picks cover the two most relevant observer profiles.

Editor's Pick — Best for This Event
Celestron SkyMaster 15x70 binoculars — best binoculars for the Mercury Jupiter conjunction

Celestron SkyMaster 15×70 Binoculars

15× magnification 70mm objective ~4.4° FOV Tripod-ready

The SkyMaster 15×70 is our top recommendation for the Mercury–Jupiter conjunction because it solves two problems simultaneously. First, the 4.4° true field of view easily encompasses the 0.8° separation with generous breathing room, so you can track both planets without constantly recentering. Second, 15× magnification is high enough to resolve Jupiter's four Galilean moons — Io, Europa, Ganymede, and Callisto — as distinct pinpricks beside the planet, while Mercury appears as a tiny but definite disk rather than a mere point.

The 70mm objectives collect enough light to maintain excellent contrast against the bright twilight sky. We recommend mounting these on a lightweight tripod using the built-in 1/4-inch adapter thread — at 15×, hand tremor is noticeable, and a stable mount transforms the viewing experience. For this event, even a basic tripod makes the difference between a frustrating wobble and a steady, satisfying observation.

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Celestron UpClose G2 10x50 binoculars — handheld binoculars for Mercury Jupiter conjunction

Celestron UpClose G2 10×50 Binoculars — Best handheld pick

10× magnification 50mm objective ~6.5° FOV Handheld

The classic 10×50 is the ideal grab-and-go option for observers who do not want to carry a tripod. At 10×, most adults can hold these steady enough for a clear view, and the 6.5° field of view makes finding the pair trivially easy — center Jupiter and Mercury is there. The 5mm exit pupil is well-matched to twilight conditions, delivering bright, contrasty images even as the sky darkens. Jupiter's two brightest Galilean moons (typically Ganymede and Callisto) are visible as faint points; all four become visible on the steadiest nights.

Trade-off vs the 15×70: You lose some detail on both planets (Jupiter's moons are less distinct, Mercury is smaller), but you gain the ability to observe immediately without setup. For a 15-minute twilight session, that convenience matters.

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Best Telescopes for the Mercury–Jupiter Conjunction

A telescope is not required for this event — binoculars are genuinely better — but if you want to examine each planet individually, a short-focal-length refractor is the most versatile choice. The challenge is that Mercury and Jupiter are only 8–12° above the horizon, which means atmospheric turbulence (bad "seeing") will blur detail at high magnifications.

Recommended — Short Refractor

A short refractor with 400–500mm focal length, such as the Celestron AstroMaster 70AZ or the Celestron Travel Scope 70, is ideal. At 20–25× with a low-power eyepiece, both planets fit in the same field of view. Switching to a higher-power eyepiece (50–60×) lets you inspect Mercury's tiny phase — it appears as a small half-illuminated disk days after greatest elongation — and Jupiter's equatorial cloud bands. However, keep expectations realistic: at such low altitude, atmospheric dispersion and turbulence will soften the view. A violet-blocking filter can help reduce chromatic aberration on Mercury.

Longer focal length telescopes (SCTs, Maksutovs, 8-inch Dobsonians) are not recommended for this event. Their narrow fields of view cannot frame both planets simultaneously, and the low-altitude seeing conditions negate their resolution advantage. If you own one, use binoculars for the pair and save the big scope for targets higher in the sky.

The golden rule for this event: binoculars first, telescope second

Because Mercury and Jupiter are so low, a telescope's higher magnification magnifies turbulence just as much as detail. Many observers find that a steady 15×70 binocular view is more satisfying than a blurry 60× telescope view. Use your telescope only if you have excellent horizon conditions and want to see planetary phase/band detail at higher power.

For more telescope recommendations, see our guides on best telescopes for beginners and best refractor telescopes.

Viewing Times by US Region — June 23, 2026

The viewing window for this conjunction is shorter than for evening-sky events involving Venus. Mercury and Jupiter are lower and closer to the Sun. You have approximately 35–50 minutes from the start of nautical twilight until the planets dip below 5° altitude.

US City Sunset (June 23) Best Viewing Window Planets Set (WNW)
New York, NY ~8:30 PM EDT 9:00–9:45 PM ~10:15 PM
Atlanta, GA ~8:50 PM EDT 9:20–10:05 PM ~10:30 PM
Chicago, IL ~8:30 PM CDT 9:00–9:45 PM ~10:15 PM
Dallas, TX ~8:40 PM CDT 9:10–9:55 PM ~10:20 PM
Denver, CO ~8:30 PM MDT 9:00–9:45 PM ~10:10 PM
Phoenix, AZ ~7:45 PM MST 8:15–9:00 PM ~9:25 PM
Los Angeles, CA ~8:05 PM PDT 8:35–9:20 PM ~9:50 PM
Seattle, WA ~9:10 PM PDT 9:40–10:25 PM ~10:50 PM

Times are approximate. Actual visibility depends on local horizon elevation, atmospheric clarity, and your latitude. Use a planetarium app for exact data for your location.

Site selection: the horizon is everything

An unobstructed WNW horizon is the single most important factor. The planets will be only 8–12° above the horizon at their best. A two-story building, a tree line, or even a gentle hill to your west will block them. Scout your location during daylight and identify a spot where the horizon is as flat and low as possible.

How to Photograph the Mercury–Jupiter Conjunction

The Mercury–Jupiter conjunction is a moderate photographic challenge. The planets are bright, but the twilight sky and low altitude require careful exposure control.

Smartphone

  • ✓ Use Night Mode or Pro mode
  • ✓ ISO 800–1600, 2–4 second exposure
  • ✓ Tap to focus on Jupiter, lock focus
  • ✓ Rest phone on a stable surface — handheld blurs
  • ✓ Include a foreground silhouette for scale

DSLR / Mirrorless

  • ✓ 85–200mm lens for a tight pair composition
  • ✓ ISO 400–800, f/4–f/5.6, 1–3 second exposure
  • ✓ Manual focus on infinity, use live view on Jupiter
  • ✓ Use a remote shutter or 2-second delay
  • ✓ Bracket exposures 1 stop above and below

Through binoculars (afocal)

  • ✓ Hold phone camera against eyepiece
  • ✓ Use Night Mode, 1–3 second exposure
  • ✓ A phone-eyepiece adapter greatly helps
  • ✓ Both planets fit in one frame at 10–15×
  • ✓ Take 5–10 frames, pick the sharpest
Key challenge: The brightness difference between Mercury (magnitude +0.3) and Jupiter (−1.7) is about 6×. A single exposure that shows Jupiter well may overexpose Mercury, and vice versa. If your camera supports HDR or exposure bracketing, use it. Alternatively, expose for Jupiter and allow Mercury to appear slightly dimmer — the compositional impact is minimal.

Mercury–Jupiter Conjunction June 2026 — FAQ

When is the closest approach of Mercury and Jupiter in June 2026?

The closest approach occurs on the evenings of June 23 and June 24, 2026, when Mercury and Jupiter pass within approximately 0.8° of each other — about 1.6 times the width of the full Moon. The separation changes very little between these two nights, so either evening offers equally good viewing. The pair is visibly converging from about June 20 and remains attractive through June 26.

Where do I look to see the Mercury–Jupiter conjunction?

Look toward the west-northwest (WNW) horizon starting about 30 minutes after sunset. Mercury and Jupiter will be low — approximately 8–12° above the horizon at their highest — in the constellation Gemini. Use Jupiter as your guide: it is the brightest point of light in that region. Mercury is immediately adjacent, less than one degree away. An unobstructed horizon (no buildings, trees, or hills to the west) is essential.

Do I need a telescope to see the Mercury–Jupiter conjunction?

No. Jupiter is easily visible to the naked eye at magnitude −1.7. Mercury at magnitude +0.3 is a tougher naked-eye target — visible from a dark site with a clean horizon but challenging from urban areas. Binoculars make the view effortless: 10×50 or 15×70 binoculars frame both planets in one field and reveal Jupiter's Galilean moons. A telescope is optional and best used for observing each planet individually at higher magnification, though low-altitude turbulence limits image quality.

What binoculars are best for the Mercury–Jupiter conjunction?

Our top pick is the Celestron SkyMaster 15×70 — its 4.4° field of view comfortably frames both planets, and 15× magnification resolves Jupiter's four Galilean moons as separate points. For handheld use without a tripod, the Celestron UpClose G2 10×50 is the better choice: lighter, still wide enough (6.5° field), and 10× is the practical handheld limit for steady viewing.

Can I see both Mercury and Jupiter in the same telescope eyepiece?

Yes — but only with a short-focal-length telescope and a low-power eyepiece. At 0.8° separation, you need at least 1.5° true field of view for comfortable framing. A 70mm refractor with 400mm focal length and a 20mm eyepiece delivers this easily. Long-focal-length scopes (SCTs, Maks, Dobsonians) cannot frame both planets simultaneously — binoculars are a better choice for those setups.

Is Mercury visible to the naked eye during this conjunction?

Yes, from a site with a clean horizon and low light pollution. Mercury at magnitude +0.3 is comparable to the brighter stars in the winter Milky Way. The challenge is not brightness — it is altitude and twilight contrast. Mercury sits only 8–12° above the horizon in bright twilight. Most first-time observers succeed by first finding the pair in binoculars, then removing the binoculars to see Mercury with the naked eye, now that they know exactly where to look.

What is the significance of Mercury's greatest elongation before this conjunction?

Mercury reached greatest eastern elongation on June 15, 2026, appearing about 23° from the Sun — its farthest angular separation and best visibility window. After that peak, Mercury began moving back toward the Sun's vicinity. The June 23–24 conjunction with Jupiter occurs while Mercury is still high enough to be seen in twilight, roughly 18° from the Sun. This conjunction serves as a second opportunity to spot Mercury before it disappears into the evening twilight for its next cycle.

Will the Moon interfere with viewing on June 23–24?

No. The Moon is a waxing gibbous phase on June 23–24, but it rises in the southeast in mid-evening, far from the WNW horizon where Mercury and Jupiter sit. The Moon's light does not affect the twilight window. New Moon falls on June 14, so the lunar phase is not a factor for this event.

Can I see Mercury's phase through a telescope?

Yes, but it is subtle. On June 23, Mercury is roughly 8 days past greatest elongation and shows a ~35–40% illuminated phase — a gibbous shape that is noticeably not a full circle. To see this, you need at least 50× magnification and steady atmospheric conditions. The low altitude makes this challenging: Mercury's tiny 5.1-arcsecond disk is near the resolution limit of small telescopes. A 70–80mm refractor at 60–80× on a steady mount is the minimum recommended setup for phase detection.

When is the next Mercury–Jupiter conjunction after June 2026?

Mercury–Jupiter conjunctions occur roughly three to four times per year because Mercury completes its orbit in 88 days and laps Jupiter multiple times annually. The next notably close pairing after June 2026 occurs in October 2026, though that event is in the morning sky. The June 2026 event is the closest evening conjunction of the year.

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