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<blockquote data-quote="Michael Morris" data-source="post: 4238673" data-attributes="member: 87">Today I'll speak to the physical world and how it's changed.It is established that Dusk is a world in a binary star system, but when I first wrote this many years ago I didn't do any studies as to what this could truly mean.&nbsp; Using a program called &quot;Celestia&quot; and studying the star system Rigel Kentarus (better known as Alpha Centari) I researched what a real world's conditions would be like in such a system and came to like the science more than the fantasy.So rather than orbit both the twin suns as was previously written Carthasana (the world of Dusk) orbits only one of the stars - Valra the Gold Sun.&nbsp; The other star is called Sodra the Cold Sun.&nbsp; Note the coloration of the two - silver and gold, though this is as much a function of distance as temperature as both stars are yellow in coloration. The gold sun is the same size as our sun, the cold sun about 3/4 it's mass.The sky this creates is rather fantastic at times.&nbsp; It takes 87 years for Sodra to complete one orbit around Valra or rather for the two suns to orbit each other once and return to their starting positions. It lies 24 - 42 AU distant, about the same average distance as Uranus to our sun. At closest approach it is 170 to 2,300 times as bright as a full moon - bright enough to create the kind of lighting conditions we see about 45 minutes after sunset - i.e. the brightest stars are out but there's still enough light to see easily. Rather than pitch black the sky in the presence of the cold sun would be a dark blue. This change creates a world where the long held title actually gains meaning.Carthasana's moon count is being cut to 1 to simplify the programming that needs to be done to track time and tides - the moon is known as Balcra. As you may notice this accounts for 3 of the five alignments / outer planes.&nbsp; Abora is associated celestially with the world itself and Shunra is the fire within the world.</blockquote>

[QUOTE="Michael Morris, post: 4238673, member: 87"] Today I'll speak to the physical world and how it's changed. It is established that Dusk is a world in a binary star system, but when I first wrote this many years ago I didn't do any studies as to what this could truly mean. Using a program called "Celestia" and studying the star system Rigel Kentarus (better known as Alpha Centari) I researched what a real world's conditions would be like in such a system and came to like the science more than the fantasy. So rather than orbit both the twin suns as was previously written Carthasana (the world of Dusk) orbits only one of the stars - Valra the Gold Sun. The other star is called Sodra the Cold Sun. Note the coloration of the two - silver and gold, though this is as much a function of distance as temperature as both stars are yellow in coloration. The gold sun is the same size as our sun, the cold sun about 3/4 it's mass. The sky this creates is rather fantastic at times. It takes 87 years for Sodra to complete one orbit around Valra or rather for the two suns to orbit each other once and return to their starting positions. It lies 24 - 42 AU distant, about the same average distance as Uranus to our sun. At closest approach it is 170 to 2,300 times as bright as a full moon - bright enough to create the kind of lighting conditions we see about 45 minutes after sunset - i.e. the brightest stars are out but there's still enough light to see easily. Rather than pitch black the sky in the presence of the cold sun would be a dark blue. This change creates a world where the long held title actually gains meaning. Carthasana's moon count is being cut to 1 to simplify the programming that needs to be done to track time and tides - the moon is known as Balcra. As you may notice this accounts for 3 of the five alignments / outer planes. Abora is associated celestially with the world itself and Shunra is the fire within the world. [/QUOTE]

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