2022年8月19日

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Saturn: 1993 – 2022
Image Credit & Copyright:
Tunc Tezel (TWAN)

Explanation: Saturn is the most distant planet of the Solar System easily visible to the unaided eye. With this extraordinary, long-term astro-imaging project begun in 1993, you can follow the ringed gas giant for one Saturn year as it wanders once around the ecliptic plane, finishing a single orbit around the Sun by 2022. Constructed from individual images made over 29 Earth years, the split panorama is centered along the ecliptic and crossed by the plane of our Milky Way galaxy. Saturn’s position in 1993 is at the right side, upper panel in the constellation Capricornus and progresses toward the left. It returns to the spot in Capricornus at left in the lower panel in 2022. The consistent imaging shows Saturn appears slightly brighter during the years 2000-2005 and 2015-2019, periods when its beautiful rings were tilted more face-on to planet Earth.

Tomorrow’s picture: light-weekend


土星:1993年-2022年
影像提供与版权:
Tunc Tezel (TWAN)

说明: 土星是太阳系里肉眼轻易可见的最遥远行星。在这个起始于1993年的非凡长期天文成像计划里,你可以追随这颗带环的气态巨行星,游荡于黄道面上,截自2022年,在一个土星年里绕行太阳一圈的行踪。这幅建构自摄于29个地球年的照片之全景图,以黄道为中心分隔上下,并与我们银河系的盘面交会。1993年的土星,位在上图板右侧的摩羯座之内,然后不断向左移动,并在2022年回到下图板左侧的摩羯座里。在这幅成像参数均一的影像里,土星在2000-2005年和2015-2019年期间,看来较为明亮,这是因为该时它美丽的环系向地球倾斜。

明日的图片: light-weekend

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