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Theta2 Microscopii
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<p>Theta2 Microscopii (θ2 Mic) is a class A0III (white giant) <a href="/facts/Star/PFbd6ICx">star</a> in the <a href="/facts/Constellation/nBQqgW8A">constellation</a> <a href="/facts/Microscopium_(constellation)/bpVBfjBj">Microscopium</a>. Its apparent magnitude is 5.76 and it is approximately 390 light years away based on parallax. It is an <a href="/facts/Ap_star/S87CqAJV">Ap star</a>, a <a href="/facts/Chemically_peculiar_star/pK0obeCV">chemically peculiar star</a> with unusually strong metallic spectral lines. </p><p>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. </p>