Abstract Perihelion distances of Marsden and Kracht group comets fall into the range 6RS < q < 12RS (the Meyer group comets also share the same perihelion interval). It is by several folds larger than the perihelion distance of the Kreutz group comets (q < 2RS). Average circulation period for comets of the Marsden group is P = 5.5 years and for the Kracht group is P =5.3 years. The Marsden and Kracht group comets share the same origin; as well as 96P (Machholz), object 196256 (2003 EH1), meteor showers the Daytime Arietids, Northern and Southern δ Aquariids, Quandrantids forming the Machholz interplanetary complex. This work offers computational movement simulation for comet-progenitor fragments. It is shown that the orbits of the representatives of the complex can be explained if the decay of the cometprogenitor for objects 96P and 196256 occurred ~9500 years ago. The following evolution direction has been demonstrated for the complex objects: progenitor comet - comet 96P - the Marsden group comets - the Kracht group comets - the Southern δ Aquariids. However, not all the complex objects will necessarily pass through every stage of the above as it can be preceded by the total disintegration of the object.

中文翻译：

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马斯登彗星和克拉赫特群彗星

摘要 Marsden 和 Kracht 群彗星的近日点距离在 6RS < q < 12RS 范围内（Meyer 群彗星也共享相同的近日点间隔）。它比克罗伊茨群彗星的近日点距离大几倍（q < 2RS）。马斯登群彗星的平均循环周期为 P = 5.5 年，克拉赫特群彗星的平均循环周期为 P = 5.3 年。马斯登彗星和克拉赫特群彗星同源；以及 96P (Machholz)，天体 196256 (2003 EH1)，流星雨白天 Arietids，北部和南部 δ Aquariids，Quandrantids 形成 Machholz 行星际复合体。这项工作为彗星祖先碎片提供了计算运动模拟。结果表明，如果天体 96P 和 196256 的彗星祖先衰变发生在大约 9500 年前，则可以解释复合体代表的轨道。复杂天体已经证明了以下演化方向：前身彗星-彗星96P-马斯登群彗星-克拉赫特群彗星-南水瓶座δ。然而，并不是所有的复杂物体都一定会经历上述的每一个阶段，因为在它之前可能会出现物体的完全解体。