Maria family
Asteroid family
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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]
Members
The family consists of 2940 known members based on the HCM method. Its largest members are the asteroids 170 Maria and 472 Roma.[2]: 23 A complete synthetic HCM-listing for all members can be obtained by using the Ferret Interactive Search.[5]
| Name | a | e | i | SBDB |
|---|---|---|---|---|
| 292 Ludovica | 2.529 | 0.034 | 14.92° | JPL |
| 652 Jubilatrix | 2.554 | 0.127 | 15.77° | JPL |
| 714 Ulula | 2.535 | 0.058 | 14.27° | JPL |
| 787 Moskva | 2.539 | 0.129 | 14.84° | JPL |
| 875 Nymphe | 2.552 | 0.151 | 14.59° | JPL |
| 879 Ricarda | 2.531 | 0.155 | 13.68° | JPL |
| 897 Lysistrata | 2.541 | 0.094 | 14.32° | JPL |
| 1158 Luda | 2.564 | 0.112 | 14.85° | JPL |
| 1215 Boyer | 2.578 | 0.133 | 15.91° | JPL |
| 2089 Cetacea | 2.533 | 0.156 | 15.39° | JPL |
| 3066 McFadden | 2.527 | 0.133 | 15.57° | JPL |
Interlopers
Although asteroid 695 Bella has orbital properties that make it a candidate for this family, the spectral properties of the object indicate it is most likely an interloper. Instead, it may have been spalled off from 6 Hebe, or its parent body.[1]