Mars and Jupiter will reach a conjunction in the constellation Leo overnight on November 15-16, 2026, appearing just over one degree apart to observers on Earth.
This planetary appulse, where Mars catches up to the slower-moving gas giant, will remain visible until dawn, offering a unique viewing window.
Visual Alignment in the Constellation Leo
The cosmic rendezvous occurs as Mars and Jupiter rise over the eastern horizon around midnight for viewers across the United States, Space reported.
“You will see Jupiter. It is extremely bright in the sky. It's the fourth brightest object in the night sky, so you will definitely see it. And then just let your eyes guide you to Mars. It'll be similar, but just dimmer. But it'll be reddish-orange, and right in the same area,” Collins said, noting that while the two planets will appear side-by-side to the naked eye, they remain separated by a massive gulf of over 368 million miles.
The blue-white light of the star Regulus will glow prominently below the pair, completing the celestial arrangement.
For observers in Slovakia, the minimum separation between the two planets will reach 1 degree and 11 minutes at approximately 3:06 Central European Time on November 16, according to Foro3D. The planets will rise around 23:00 on the previous night and persist in the sky until the early morning hours.
Technical Considerations for Astrophotography
While the event is visible without aid, maximizing the observation requires specific optical hardware. Buffalo Toronto Public Media reported that the planets will be roughly 1.2 degrees apart, which is about the width of a finger held at arm’s length.
“The actual moment of close approach is Monday morning at 5:15 a.m. After that point, they’re going to start separating again, and Mars will go on its way. So any day before or after that, and then each subsequent day after, you can still get up, go outside if it’s clear, and take a look, said Tim Collins, Board Director of the Buffalo Astronomical Association.”
For enthusiasts utilizing telescopes with an aperture greater than 10 centimeters, both worlds can fit within a single field of view, Foro3D noted. The technical challenge lies in selecting an eyepiece and magnification that accommodate the one-degree separation without losing edge-to-edge detail. Short refractors or reflectors with moderate focal lengths are recommended to maintain clarity.
Jupiter and Mars Present Different Profiles Through a Telescope
Through a telescope, the two worlds present drastically different profiles. Jupiter, which possesses a magnitude of -2.1, reveals its gargantuan cloud bands and zones formed by ammonia and water masses. These features are driven by powerful jet streams within the planet’s hydrogen and helium atmosphere.
Mars appears as a reddish, ochre disk. Observers can identify dark surface features where basaltic rock has been scoured clean of iron-rich dust. Unlike the inner planets Mercury and Venus, both Mars and Jupiter are superior planets, meaning their disks always appear full when viewed through an eyepiece.
| Feature | Jupiter | Mars |
|---|---|---|
| Visual Appearance | Extremely bright, gas giant | Reddish-orange, ochre disk |
| Key Characteristics | Cloud bands, Galilean satellites | Basaltic rock, iron-rich dust |
| Magnitude | -2.1 | +0.7 |
Future Opportunities for Observation
This specific alignment occurs roughly every two to two-and-a-half years as Mars completes its orbit. Following this weekend, the planets will begin to drift apart as Mars continues its trajectory through the solar system.
Observers who miss the peak window on November 16 will have fewer opportunities to see the pair this close in the coming years. According to Space, the planets will not achieve this level of proximity again until July 2029.
