Stellar · Distance
Earth–Moon distance
≈384,400 kmThe average centre-to-centre distance separating Earth and the Moon.
Stellar ↔ Stellar
Would the Sun fit between Earth and the Moon?
Compare a separation in space with a stellar diameter using linear spans rather than describing the distance as an object.
Linear ratio3.623×
The Sun spans about 3.623× the selected distance of Earth–Moon distance.
Stellar · Stars
The Sun
1.393 million kmThe star containing almost all the solar system’s mass and powering nearly every surface ecosystem.
The answer
A ratio, an analogy and the definitions behind both.
The Sun spans about 3.623× the selected distance of Earth–Moon distance.
About 3.623× Earth–Moon distance linear spans fit across the selected measurement of The Sun.
mean centre-to-centre distance versus mean diameter
The metre values can be divided as linear spans, but the two entries do not describe identical kinds of boundary.
Earth–Moon distance is variable; the Sun is measured.
Representative, variable and model-dependent values are useful for perspective only when their status remains visible.
Measurement ledger
What exactly was divided?
| Landmark | Value | Measurement | Certainty | Source |
|---|---|---|---|---|
| Earth–Moon distance | ≈384,400 km | mean centre-to-centre distance | Variable | NASA Science ↗ |
| The Sun | 1.393 million km | mean diameter | Measured | NASA Science ↗ |