Esclangona has a small moon, provisionally named S/2003 (1509) 1, which measures 4 km in diameter, and orbits 140 km from its parent. This wide separation relative to the pair's size is rather unusual and it is believed that both Esclangona and its moon are ejecta from an asteroidal collision in the past that left the scene as a co-orbiting pair; a similar pairing is 3749 Balam and its moon [1]. 243 Ida and its moon Dactyl An asteroid moon is an asteroid that orbits another asteroid. ... In volcanology, ejecta consists of particles that came out of a volcanic vent, traveled though the air or under water, and fell back on the ground surface or on the ocean floor. ...
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1509Esclangona is a small asteroid discovered on December 21, 1938 by André Patry from Nice, France.
Esclangona has a small moon, provisionally named S/2003 (1509) 1, which measures 4 km in diameter, and orbits 140 km from its parent.
This wide separation relative to the pair's size is rather unusual and it is believed that both Esclangona and its moon are ejecta from an asteroidal collision in the past that left the scene as a co-orbiting pair; a similar pairing is 3749 Balam and its moon [1].