What Does The Sun Look Like From Pluto?

QUICK ANSWER

From Pluto, the Sun looks like a very bright star rather than a disk. It's the brightest object in Pluto's sky (about 250 times brighter than a full Moon on Earth), but provides only about 1/1,600th as much light as on Earth. Noon on Pluto resembles Earth's twilight.

The Sun is still the brightest thing in Pluto's sky, but it doesn't look like a sun. From Pluto's surface, the Sun appears as a brilliant point of light rather than a disk, more like the brightest star imaginable than the warm yellow ball we see from Earth. The light it provides is technically enough to read by, but only barely.

What does the Sun look like from Pluto?

A very bright star. According to NASA, the Sun from Pluto's distance appears as a brilliant point of light rather than a disk. The Sun's apparent diameter as seen from Pluto is about 1 arcminute, roughly 1/30th the apparent size of the Sun from Earth. To the unaided eye on Pluto, the Sun would look essentially like a star, just an extremely bright one. You'd need a telescope to see any disk at all. The Sun would still cast distinct shadows, just much less intense ones.

How much light does Pluto get from the Sun?

About 1/1,600th of what Earth gets. Sunlight intensity drops with the square of distance from the Sun, so at Pluto's distance (about 40 times Earth's), the intensity drops by a factor of about 1,600. The available light at noon on Pluto is roughly the same as Earth on a heavily overcast day or about 20 minutes after sunset on a clear day. It's still bright enough to read by, but most of the warmth and yellow color of Earth's sunlight is gone. Pluto exists in perpetual deep twilight.

How bright is the Sun from Pluto compared to other things?

Still vastly brightest. The Sun from Pluto is about 250 to 300 times brighter than a full Moon on Earth. The next-brightest natural object in Pluto's sky would be Charon, a dim disk. The Sun outshines even Charon by a large factor. From Pluto's surface, you could still tell the difference between day and night, even if the day is much dimmer than Earth's.

Did New Horizons photograph the Sun from Pluto?

Sort of. As New Horizons flew past Pluto in 2015, it captured images looking back toward the inner solar system. One famous image shows Pluto silhouetted against the Sun, with the planet's thin atmosphere visible as a glowing halo. The Sun in this image looks essentially like a very bright star. Other New Horizons photos showed Pluto's surface in the dim sunlight that does reach it, revealing the heart-shaped Tombaugh Regio and other features in surprising detail given the low light levels.

The Sun from Pluto looks like a very bright star, not a disk, providing about 1/1,600th the light we get on Earth. Noon on Pluto is dimmer than twilight on Earth. The Sun is still by far the brightest object in Pluto's sky, but it doesn't look anything like the warm yellow ball we're used to. Pluto exists in a kind of perpetual deep twilight, with just enough sunlight to make out the dim landscape.

What Does The Sun Look Like From Pluto?