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Posted on March 2, 2024 (Updated on July 16, 2025)

Unveiling Earth’s Closest Encounter: Unraveling the Location Nearest to the Sun

Geology & Landform

Earth’s Close Encounters: When We Get Cozy with the Sun

Ever wonder when Earth gets its closest to the sun? It happens every year, a cosmic event we call perihelion. But before you start thinking this proximity is why we have seasons, let’s unpack what’s really going on. Turns out, it’s a bit more complicated – and way more interesting – than you might think.

The Elliptical Wiggle: Perihelion Demystified

Our planet’s path around the sun isn’t a perfect circle; it’s more like a slightly squashed one, an ellipse. This means there’s a point where we’re practically cheek-to-cheek with the sun (perihelion) and another where we’re waving from a distance (aphelion). “Perihelion” comes from Greek words meaning “around the sun,” while “aphelion” means “far from the sun.” Simple enough, right?

Back on January 4, 2025, at 8:28 a.m. EST, we hit perihelion. We were a mere 91.4 million miles from the sun. Now, a few million miles might not sound like much in space terms, but it’s a noticeable difference. Think of it like this: it’s like moving a few steps closer to a campfire – you can definitely feel the extra warmth!

The Subsolar Sweet Spot

Now, while perihelion is about Earth’s overall closest approach, there’s always one specific spot on Earth that’s the closest to the sun at any given moment. That’s the subsolar point, the place where the sun is directly overhead, shining down with all its might. Imagine standing there – you wouldn’t even cast a shadow! This point moves around throughout the year, hitting the Tropic of Capricorn in December and hanging out at the Equator during the equinoxes.

Seasons: Not Just About Distance

Okay, let’s bust a myth: being closer to the sun doesn’t cause summer. I know, mind blown! The real reason we have seasons is the Earth’s tilt. Our planet leans on its axis, and that tilt changes the angle at which sunlight hits different parts of the world. More direct sunlight? Hello, summer! Less direct? Brrr, winter’s here.

A Tiny Tweak

Even though distance isn’t the main player, perihelion and aphelion do have a subtle influence. Because Earth speeds up a bit when it’s closer to the sun, our winters are actually a few days shorter than our summers. Plus, when we’re farther away at aphelion, we get a tad less solar radiation. It’s like turning down the thermostat just a smidge.

Orbital Shenanigans: The Long Game

The dates of perihelion and aphelion aren’t set in stone. They shift over time due to something called orbital precession. It’s a slow, gradual wobble in Earth’s orbit caused by the gravitational tug of other planets. Think of it like a cosmic dance with a really, really slow beat.

So, What’s the Takeaway?

Earth’s yearly close encounter with the sun, perihelion, is a fascinating reminder of our planet’s journey through space. While it doesn’t dictate our seasons, it does play a subtle role, adding a little spice to the celestial mix. And that subsolar point? It’s a reminder that somewhere on Earth, the sun is always shining its brightest.

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