A supernova is observed by the chinese and amerindians near the star tauri 1054年的今天,一顆位于金牛座附近的超新星被中國(guó)及印第安人發(fā)現(xiàn)并記載。
Which will eventually form stars of spectral types g , k or m . t tauri stars are surrounded by a huge cloud and they are very young , with low surface temperature . they emit most of their light in the infrared region and they appear red . a general principle is , a violent reaction will give out short wavelength waves , like gamma rays or x - rays ; while a gentle process will radiate long wavelength waves , like radio or infrared ,這類星最后會(huì)演化為g k或m型恒星,金牛座t型星為表面溫度低而非常年青的恒星,四周被星云所圍繞,所以這種星顏色偏紅,較容易在紅外線波段找到一個(gè)普遍的原則是,如果活動(dòng)越激烈,則所放出的光波波長(zhǎng)越短,主要會(huì)為伽瑪或x射線如果活動(dòng)溫和,則會(huì)發(fā)放出如無線電波或紅外線等長(zhǎng)波長(zhǎng)電磁波。