野蓝蓟的行星
影像来源与版权:Daniel Lopez (El Cielo de Canarias)

说明:这是那颗怪诞行星的奇怪植物呢?当然是我们的地球。在这幅使用广角鱼眼镜头拍摄的全天影像里,我们地球所在的银河系绵延横贯天际。不过对许多地球居民来说,这些壮观且仰视天空的物种看来极为怪异。这些摄于加那利群岛特内里费岛泰德国家公园内的物种,是名为红野蓝蓟的开花植物,最高可长到3公尺。这些生长在火山原野石块之间的野蓝蓟,开花的季节在春天和夏初,然后随着种子成熟,在一星期之后就枯死。在这幅广角影像里,这些名为野蓝蓟(Echium wildpretii)的植物,每一株都分别用手电筒照光。
翻译:“每日一天文图”成大物理分站

Planet of the Tajinastes
Image Credit & Copyright: Daniel Lopez (El Cielo de Canarias)

Explanation: What bizarre planet are these alien creatures from? It’s only planet Earth, of course. The planet’s home galaxy the Milky Way stretches across a dark sky in the panoramic, fisheye all-sky projection composed with a wide lens. But the imposing forms gazing skyward probably look strange to many denizens of Earth. Found on the Canary Island of Tenerife in the Teide National Park, they are red tajinastes, flowering plants that grow to a height of up to 3 meters. Among the rocks of the volcanic terrain, tajinastes bloom in spring and early summer and then die after a week or so as their seeds mature. A species known as Echium wildpretii, the terrestrial life forms were individually lit by flashlight during the wide-angle exposures.
Astronomy Picture of the Day 05/25/2019