red supergiant造句

• A typical red supergiant could be about 100 times larger than the red giant . its surface temperature is low while the total luminosity remains high , with absolute magnitude up to - 10 comparing to 4 . 8 of our sun
  典型的超红巨星比普通红巨星大上100倍，虽然表面温度低，但整体光度仍然非常高，绝对星等可达- 10太阳的绝对星等只有4 . 8 。