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130 Elektra is a very large outer main-belt asteroid. It was discovered by C. H. F. Peters on February 17, 1873, and named after Electra, an avenger in Greek mythology.

Its spectrum is of the G type, hence it probably has a Ceres-like composition. Spectral signatures of organic compounds have been seen on Elektra's surface.<ref name=CruBro87>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref>

In the late 1990s, a network of astronomers worldwide gathered lightcurve data that was ultimately used to derive the spin states and shape models of 10 new asteroids, including (130) Elektra. The light curve of (130) Elektra forms a double sinusoid while the shape model is elongated and the derived rotation axis is perpendicular to the plane of the ecliptic.<ref name="Durech2007"/><ref>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref>

Optical observations have found two satellites of this asteroid. Once the orbits are known, Elektra's mass can be reliably found. The value of 6.6×10{{#invoke:Gapnum|main|18}} kg indicates a density of 1.3 ± 0.3 g/cm3. Optical observations have also determined that Elektra's shape is quite irregular, as well as giving indications of albedo differences of 5-15% on its surface.<ref name=MarKaaHom06/>


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