Theta2 Microscopii
star in the constellation Microscopium
Theta2 Microscopii (θ2 Mic) is a class A0III (white giant) star in the constellation Microscopium. Its apparent magnitude is 5.76 and it is approximately 390 light years away based on parallax. It is an Ap star, a chemically peculiar star with unusually strong metallic spectral lines.
The main star is known to be a binary, with two components A (6.24 mag) and B (6.88 mag) orbiting with a semimajor axis of 0.836" and eccentricity 0.201, with a period 464.66 years. A more distant companion, C, has a separation around 78.4" and magnitude 10.3.
The public source identifies “Theta2 Microscopii” as star in the constellation Microscopium. This brief keeps that definition visible, then builds a research path around Theta2, Microscopii and star.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 13, 2026. The linked authority identifier is Q10382041. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Theta2 Microscopii” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.