Hi. I couldn't find good information of this online, so I'll ask here. I'm wondering what the maximum possible lifespan of a particular star. Here's what is known of it: It's a B class-blue giant star. Its surface temperature is 25,000 K. (This is very vague and may offer no help but:) It has no lower than 40,000 G force, and no more than 2.7 Billion.