Saturn at opposition 충일때의 토성 2021-08-03 UT Saturn at opposition. 2021-08-03 UT. 충일때의 토성. http://cometsky.com/astrophotos/saturn_20210803_bsyeom.jpg Taken by Bum-Suk Yeom(염범석). The Seeliger effect(sometimes known as the opposition effect, the opposition surge) refers to the sudden noticeable increase in the brightness of a celestial body such as a planet, moon, or comet as its phase angle of observation approaches zero. Near opposition Sa.. 2021. 9. 8. 이전 1 다음