Technique · Measurement, Data & Statistics

Galaxy Rotation Curves

Measuring how fast a galaxy rotates at each radius, usually from the Doppler shift of its gas. The stars orbit far faster than the visible matter can explain — the classic evidence that galaxies are embedded in halos of dark matter.

Measurement, Data & StatisticsMeasures: Mass distribution in galaxies

Highlights

›The classic evidence for dark matter

Dark Matter

Knowledge connections

Member of groupMeasurement, Data & Statistics
Associated withDark Matter
Associated withTully–Fisher Relation
Associated withGalactic Rotation

Sources

Facts on this topic will be cited from these primary and reference sources.

NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.

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Galaxy Rotation Curves

Highlights

Builds on

Knowledge connections

Sources

Galaxy Rotation Curves

Highlights

Builds on

Knowledge connections

Sources