draconids meaning in English

天龙座流星群

The occurrence time the draconids maxima is as follows
这次天座流星雨的极大期时间如下：
Draconids are easily recognizable as the meteors are much slower than other meteor showers
天座流星划过天空的速度较其它主要流星雨慢，很易分辨。
You may capture the image of draconids with camera . basic equipment includes camera with long time exposure function bulb shutter and fast film
如要进行天文摄影，需配备具有" b "快门可作长时间曝光的相机和高速菲林。
Comet giacobini - zinner passed the perihelion on 3 july this year , it is still relatively close to the earth in october . some astronomers predicted that draconids may be worth watching this year
Giacobini - zinner彗星今年在7月3日通过近日点，至10月时与地球尚算接近，因此有天文学家认为今年可能会出现较可观的天座流星雨。
However , even with the most optimistic prediction and the best observing environment , there will only be around few hundred of meteor , hardly comparable with 2001 leonids . according to some other astronomers , draconids may be just as sparse as in ordinary years
但即使最乐观的估计及最佳的观测环境下，每小时流星数量亦只有数百颗，与2001年狮子座流星雨仍有很大距离，亦有天文学家认为今年的天座流星只是寥寥可数。