恒星分类
人气:398 ℃ 时间:2020-04-06 17:38:05
解答
恒星表面的温度一般用有效温度来表示,它等于有相同直径、相同总辐射的绝对黑体的温度.恒星的光谱能量分布与有效温度有关,由此可以定出O、B、A、F、G、K、M等光谱型(也可以叫作温度型)温度相同的恒星,体积越大,总辐...
推荐
猜你喜欢
- 化学能源有哪些
- festival,the,our,spring,favourite,is,Festival(帮我把这些单词组成一句话)
- Being ill,he didn't come to school yesterday还是Ill,he didn't come to school yesterday?
- look at the
- _______ your letter,I would have started ff two days ago.AIf I recevied B.Had I received
- 某饲养场养鸡养鹅500只,养鸡的只数是鹅的5倍,这个饲养场养鸡多少只?(急!
- 5.6/1.4是多少,怎样简算
- 如果点P在平面区域2x−y+2≥0x+y−2≤02y−1≥0上,点Q在曲线x2+(y+2)2=1上,那么|PQ|的最小值为_.