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Cygnet XIV: Difference between revisions
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Cygnet's three stars are visible at different times from Cygnet XIV, and it has a moon of approximately 2.1* Earth's moon's mass visible. Cygnet's primary, a A7V class star, is a harshly brilliant dot viewable at certain times (approximately 1391 times weaker than Earth's sun during the day), however, it's day is dominated by the closely orbiting binary stars (G3V and K2V), both yellow - are a discs smaller than the size of Earth's sun in the sky but nearly as bright individually<ref group="notes">The hotter, G3V star, is 24.9 arcminutes, and the cooler, K2V star, is 27.9 arcminutes.</ref>, and together, are approximately 110% as bright as Earth's sun.<ref group="notes">I worked out the math, thanks to a handy guide, but anything that requires use of arcsin is unfun. Still, useful, no?</ref> | Cygnet's three stars are visible at different times from Cygnet XIV, and it has a moon of approximately 2.1* Earth's moon's mass visible. Cygnet's primary, a A7V class star, is a harshly brilliant dot viewable at certain times (approximately 1391 times weaker than Earth's sun during the day), however, it's day is dominated by the closely orbiting binary stars (G3V and K2V), both yellow - are a discs smaller than the size of Earth's sun in the sky but nearly as bright individually<ref group="notes">The hotter, G3V star, is 24.9 arcminutes, and the cooler, K2V star, is 27.9 arcminutes.</ref>, and together, are approximately 110% as bright as Earth's sun.<ref group="notes">I worked out the math, thanks to a handy guide, but anything that requires use of arcsin is unfun. Still, useful, no?</ref> | ||
Cygnet XIV's moon, Sehzair, completes a cycle every 24.21 days, and has an orbital period longer than it's local day of 26.14 hours. Due to it's size and orbital distance, Sehzair's full moon phase is larger than both the suns of Cygnet XIV; and also larger than the Earth's moon by 23%.<ref>Yes, Cygnet XIV has no lunar eclipses.</ref>. The phase is [TODO: Work out apparent phases, relative brightness] | Cygnet XIV's moon, Sehzair, completes a cycle every 24.21 days, and has an orbital period longer than it's local day of 26.14 hours. Due to it's size and orbital distance, Sehzair's full moon phase is larger than both the suns of Cygnet XIV; and also larger than the Earth's moon by 23%.<ref group="notes">Yes, Cygnet XIV has no lunar eclipses.</ref>. The phase is [TODO: Work out apparent phases, relative brightness] | ||
===References=== | ===References=== | ||