Figure 1. (IMAGE)

University of Helsinki

Figure 1.

Caption

Mass estimate for main-belt asteroid (445) Edna based on ground-based astrometry (blue), Gaia DR2 astrometry (red), and their combination (green). The combination of ground-based and Gaia data provides the most accurate estimate for Edna's mass and the low density suggest that its carbonaceous interior has not been fully compacted.

Credit

Reference and image credit: Siltala, L. & Granvik, M. 2022, Astronomy & Astrophysics 658, A65.

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