What Is Mars at Opposition?
Every 26 months, Earth laps Mars in our shorter, faster orbit around the Sun. The moment when Earth, Mars, and Sun align — with Earth in the middle — is called opposition, and it marks the best viewing conditions for the Red Planet.
At the February 2027 opposition, Mars will be approximately 100 million kilometres from Earth — its closest approach of this 26-month cycle. It will shine at magnitude -1.2, bright enough to be one of the most dramatic objects in the winter sky: an unmistakably orange-red point, brighter than most stars, burning steadily above the southern horizon.
Not All Oppositions Are Equal
Mars's orbit is significantly elliptical compared to Earth's. This means the planet's distance from the Sun varies by nearly 50 million kilometres between its closest and farthest points. When opposition occurs near Mars's closest approach to the Sun (perihelion), the two planets can come within 55 million kilometres — a "perihelic opposition." When opposition happens near Mars's farthest point from the Sun (aphelion), the closest approach can be 100 million kilometres.
The 2027 opposition is near the middle of this range — a moderately favourable opposition. It's not the 2003 opposition (the closest Mars approach in 60,000 years, at 55.76 million km) but it provides significantly better views than poor opposition years.
Finding Mars
Look southeast after sunset in February 2027. Mars will be in Leo, a notable position above the ecliptic. Its distinctive orange-red colour is unlike any star — no star in the sky matches it. It doesn't twinkle like stars do because it's a disc, not a point, at closest approach.
Mars rises in the east in the early evening, climbs to the south by midnight, and sets in the west before dawn. The entire night it dominates its corner of the sky.
What to See Through a Telescope
At February 2027 opposition, Mars's angular diameter will be approximately 14 arcseconds. This is small compared to Jupiter (47 arcseconds at its 2026 opposition), but enough to reveal significant detail.
What to look for:
Polar caps: Mars has white polar ice caps — one at each pole. In February 2027 the southern cap will be tilted toward Earth, and you may be able to see it as a bright white spot at Mars's south pole. The caps grow and shrink with the Martian seasons.
Dark markings: The darker basaltic plains are visible as grey-brown blotches. Syrtis Major — the most prominent dark feature — looks like a triangular pointing south. Astronomers have mapped it since the 17th century.
Dust storms: Mars is notorious for global dust storms that can obscure all surface features for months at a time. One occurred in 2018 and lasted long enough to end the Opportunity rover's mission. If one occurs near opposition, Mars will look uniformly orange with no detail. Check astronomical news in the weeks before.
Olympus Mons and Tharsis: The largest volcano in the solar system and the Tharsis plateau are too small to resolve directly but affect Mars's appearance — their elevated terrain sits above most Martian dust storms.
Historical Significance
Mars has mesmerised humans since antiquity. Its red colour associated it with blood and war across cultures — the Romans named it after their god of war; the Babylonians called it Nergal (god of death and plague); the ancient Egyptians called it Har Decher, the "Red One."
The 1877 opposition was observed closely by Giovanni Schiaparelli, who mapped fine linear features he called "canali" — channels. Translated into English as "canals," this sparked the widespread belief in artificial Martian waterways and sparked decades of speculation about Martian civilization.
Mars became the first planet probed by spacecraft with the Mariner 4 flyby in 1965. Today, multiple rovers and orbiters study it continuously, and Mars is the primary target for human exploration in the coming decades.
Photographing Mars
Mars is the hardest major planet to photograph well because it's small. Success requires patience and the right equipment.
Phone camera: Mars will appear as a bright red-orange dot — perhaps slightly non-circular with a long telephoto. Photographically, the colour is the story.
DSLR with telephoto: 500mm+ at f/8, ISO 400–800, 1/100–1/250s. You'll capture a slightly orange disc shape.
Telescope + planetary camera: Use a webcam or dedicated planetary camera, capture video at high frame rate, and stack hundreds of frames with AutoStakkert. A 200mm aperture will show polar caps and major dark markings. 300mm+ reveals significant detail.
Best condition tip: Image Mars near its highest point (around midnight) to look through the least atmosphere. Good "seeing" — stable air — matters enormously for Mars photography.
One Surprising Fact
A Martian day (called a "sol") is 24 hours and 37 minutes — so close to Earth's that the earliest Mars rover controllers maintained Mars time during missions. Watching features rotate across Mars's disc, if you observe several nights in a row, is satisfying: the planet shows you a new face every night as it spins.