The coalsack planets are gone .

煤袋行星都消失了。

Looking skyward along the milky way 's arc from the left are alpha and beta centauri , the coalsack , the southern cross , and the carina nebula .

朝天空看，循着银河的亮弧，从左边半人马α和β（南门二与马腹一），至煤袋星云，南十字，船底星云。