🌟 A stellium forms when 3 or more of the tracked planets (Sun, Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto — Moon excluded) are all within mutual conjunction orb of each other at the same time. Any planet joining, leaving, or the cluster splitting/merging starts a new episode.
3
☉☿♄3-planet stellium
Surya, Budha, Shani
Formed May 26, 1913 · 03:33:28 EST
Broke up Jun 6, 1913 · 12:32:12 EST
4
☉☿♄♇4-planet stellium⭐ largest this window
Surya, Budha, Shani, Pluto
Formed Jun 6, 1913 · 12:32:12 EST
Broke up Jun 7, 1913 · 23:57:28 EST
3
♀♄♇3-planet stellium
Shukra, Shani, Pluto
Formed Jul 29, 1913 · 20:24:44 EST
Broke up Jul 30, 1913 · 06:25:54 EST
3
♂♄♇3-planet stellium
Mangala, Shani, Pluto
Formed Sep 3, 1913 · 07:28:17 EST
Broke up Sep 7, 1913 · 22:12:43 EST
Computed for Columbus, Ohio, America (United States) — exact-instant orb events (jd_utc), MariaDB-backed, 1900–2500.