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Sigma Octantis is a solitary [9] star in the Octans constellation that forms the pole star of the Southern Hemisphere.Its name is also written as σ Octantis, abbreviated as Sigma Oct or σ Oct, and it is officially named Polaris Australis (/ p oʊ ˈ l ɛər ɪ s ɔː ˈ s t r eɪ l ɪ s /). [10]
NGC 2573, also known as Polarissima Australis, [8] is a barred spiral galaxy located in the constellation Octans. It has an apparent magnitude of 13.25, [ 4 ] making it readily visible in medium-sized telescopes , but not to the naked eye .
Currently, Earth's pole stars are Polaris (Alpha Ursae Minoris), a bright magnitude 2 star aligned approximately with its northern axis that serves as a pre-eminent star in celestial navigation, and a much dimmer magnitude 5.5 star on its southern axis, Polaris Australis (Sigma Octantis).
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Polaris Australis (Sigma Octantis), the southern pole star, is a magnitude 5.4 star just over 1 degree away from the true south celestial pole. Its relative faintness means that it is not practical for navigation. [5]
Polaris are an Australian metalcore band from Sydney. [1] The band consists of vocalist Jamie Hails, guitarist Rick Schneider, bassist/vocalist Jake Steinhauser and drummer Daniel Furnari. They released their debut album, The Mortal Coil on 3 November 2017 to critical acclaim and it was nominated for the 2018 ARIA Award for Best Hard Rock. [ 2 ]
Polaris: Became known as stella polaris ('polar star') during the Renaissance. [10]: 23 See polar star for other names based on its position close to the celestial pole. /poʊˈlɛərᵻs/ Octans: σ Octantis: Polaris Australis: See South Star. /poʊˈlɛərᵻs ɔːˈstreɪlᵻs/ Sagittarius: μ Sagittarii Aa: Polis /ˈpɒlᵻs/ Gemini: β ...
It hosts two planets discovered in 2023. [4] [5] They are locked in a near 2:1 orbital resonance.TOI-4342 b is a Neptune-like body located 0.05251 AU from its star. Its orbital period around the star is 5.5 days.