Servo is right. There are no yellow supergiants. They're either big and bloated like Betelgeuse, or more compact and blue like Sandulek.Darth Ruinus wrote:Oh, wait since this Trekkie wont take any thing unless it is stated, how are you sure it is a main sequence star? Is it stated in the episode or something? Thanks for the info.
But there's a further reason to suspect the Bajoran sun is not a supergiant. The Bajorans presumably evolved on Bajor. This means that their sun had to have survived at least long enough for the Bajorans to evolve from the first primitive life forms to the full fledge Bajorans.
Now, consider: although it is an offense against evolution as we know it, The Chase does establish that basically all humanoid life in the Milky Way has a common origin (much like the yeast of Nivan's Known Space gives all life in the galaxy a common biochemical base, only Nivan did it right). Bajorans are one of these humanoid life forms, and this happened about 4 billion years ago. This means the Bajoran sun has been burning for about 4 billion years.
The sun is predicted to have a lifespan of about 10 billion years, so the fact that the Bajoran sun is still burning indicates that it is no heavier than 1.35 solar masses (lifetime is proportional to the inverse cubed of the star's mass; a star twice as heavy as the sun lasts only about 2 billion years). If I recall correctly, supergiants begin at about 10 solar masses, so Bajor is no supergiant.