Mass

Just how heavy is 10 solar masses?

Moons, planets & stars

10 M☉

1.9885 × 10³¹ kgkilograms
4.3838 × 10³¹ lbpounds
1.9885 × 10²⁸ ttonnes
Linear measure
MASS10 M☉15 M☉
01
10 solar masses10 M☉Mass · definition
02
Betelgeuse15 M☉Mass · rounded model
Bar length measures mass, not physical size.

A little perspective

Betelgeuse has about 1.5 times the mass of 10 solar masses.

Measurements, assumptions & sources +

10 solar masses

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

NIST — SI conversion factors

Betelgeuse

A deliberately rounded red-supergiant model. Its apparent edge varies with wavelength and the star changes over time.

Defined examples — our methodology

The marked mass is calibrated. Unmeasured illustration details are representative.

Measurement details

Why these numbers?

The visual compares mass with mass. The records below preserve each value’s basis and caveats.

10 solar masses

10 M☉

Mass · definition

The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.

Betelgeuse

15 M☉

Mass · rounded model

A deliberately rounded red-supergiant model. Its apparent edge varies with wavelength and the star changes over time.

Comparing
Mass ↔ Mass
Relative size
Betelgeuse is larger on this measurement by a factor of about 1.5. Betelgeuse's selected measurement is approximately 50% greater than 10 solar masses's.

How to read the visual

The labelled spans and stored measurements determine the scale; unmeasured illustration details do not.

  • Betelgeuse is labelled rounded model; treat the displayed value as a comparison anchor rather than false precision.

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