The Maria family (adj. Marian; FIN: 506; also known as the Roma family) is a collisional asteroid family located in the inner parts of the intermediate asteroid belt, near the 1:3 Kirkwood gap. The family consist of several thousand stony S-type asteroids. It is named after its parent body and lowest numbered member, the asteroid 170 Maria.[1][2]: 23 It is also known as the Roma family, named after its alternative parent body, 472 Roma.[3]
The family was initially identified by Japanese astronomer Kiyotsugu Hirayama in 1918.[1] Asteroids in this family typically have a semi-major axis between 2.52−2.62 AU, and an inclination of 12 to 17°.[4]
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