Key facts
- Category
- Asteroids
- Object class
- Binary main-belt asteroid
- Composition
- Silicate rock and metal
- Scale fact
- 910 mmaximum extent
- Mass
- ~467 million metric tons
152830 Dinkinesh
910 mmaximum extent
Explore 152830 Dinkinesh to scaleVisual creditLucy 2023 / NASA / Goddard / SwRI / Johns Hopkins APL / NOIRLab / Public domainSource: Wikimedia Commons
Details
Dinkinesh is a small stony main-belt asteroid and the first object visited by NASA’s Lucy spacecraft. The 2023 flyby revealed its moon Selam, the first known contact-binary satellite of an asteroid.
Lucy approached Dinkinesh in November 2023 as a test of the tracking system it will use at Jupiter’s Trojan asteroids. The images instead revealed a small satellite, Selam, whose two touching lobes make it the first contact-binary object known to orbit another asteroid. Dinkinesh itself has a ridge and a trough, evidence that this sub-kilometer system has undergone substantial reshaping rather than remaining a simple solid rock.
Links
- Preset views
- Wikipedia
- 152830 Dinkinesh on Wikipedia
Size neighbors
Objects near 152830 Dinkinesh on the scale
On the logarithmic size axis, 152830 Dinkinesh falls between 65803 Didymos and 162173 Ryugu. The band uses nearby Asteroids records.
Shared physical scale
3.63km
Sources
References for 152830 Dinkinesh
Measurements and descriptive context are compiled by the Scale of Space team from the references below. If you find an error, please let us know.
- 152830 Dinkinesh — Wikipedia
- Visual reference: Wikimedia Commons (Lucy 2023 / NASA / Goddard / SwRI / Johns Hopkins APL / NOIRLab, Public domain)
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About
Scale of Space is a scroll-based journey through the universe, placing objects on a single logarithmic scale so you can compare size across an unbroken range.
Guides explain selected parts of that range, while focused views filter the objects by subject.