Bananas for Scale
Proxima Centauri

Photo from Wikimedia Commons

Proxima Centauri

The closest star to our solar system/Stars

Proxima Centauri is a small red dwarf star about 4.24 light-years from Earth, the closest known star to the Sun. Despite being our nearest stellar neighbour, it is far too faint to see with the naked eye. It hosts at least two confirmed exoplanets, including Proxima Centauri b in the habitable zone.

Measurements

Diameter214 million m
1.1 billionPlier lengths
14.3 trillionWhite blood cells

About 0.154 solar diameters

Mass245 octillion kg
2.4 septillionLoaded freight cars
40.8 septillionAfrican elephants
245 octillionPineapples

About 0.122 solar masses

Luminosity650 sextillion W
433 quintillionPool pumps
16.3 sextillionChristmas light strings

About 0.0017 times solar luminosity

Effective surface temperature3,042 K
9.76Human fevers
21.5 nonillionthsPlanck temperatures
8.15Boiling water
Distance from Earth39.9 quadrillion m
58.2 quadrillionTennis rackets
26.6 quintillionAnt antennae
26.6 quadrillionBathtub lengths

About 4.24 light-years

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