【】
A spacecraft tasked with keeping a robotic eye on the sun caught sight of a double eclipse of our closest star last week.。
NASA's Solar Dynamics Observatory (SDO) captured a high-definition video of the Earth and moon blocking the light of the sun at the same time on Sept. 1.。
SEE ALSO:Here are 31 of the best space photographs of the year 。In the footage, Earth passes in front of the sun first, with the moon following shortly afterward. 。
"The end of the Earth eclipse happened just in time for SDO to catch the final stages of the lunar transit," NASA said in a statement. 。
Thanks for signing up! 。
"In the SDO data, you can tell Earth and the moon’s shadows apart by their edges: Earth’s is fuzzy, while the moon’s is sharp and distinct."。
The Earth's diffuse edge is due to the planet's atmosphere, making its margins somewhat blurry during this kind of event, NASA said. The moon, on the other hand, has a defined edge because it lacks an atmosphere. 。
This eclipse could also be seen on the ground from parts of the African continent. 。
"The eclipse was what's known as a ring of fire, or annular, eclipse, which is similar to a total solar eclipse, except it happens when the moon is at a point in its orbit farther from Earth than average," NASA added.。
That added distance makes the moon look smaller from Earth, meaning that it doesn't blot out the full face of the sun, leaving a "ring of fire" around the star from our perspective. 。相关文章
Nancy Pelosi warns colleagues after info hacked
House Minority Leader Nancy Pelosi warned fellow Democrats on Saturday to change their cellphone num2024-11-21- 奧斯卡:大家總對在中國踢球有偏見 但很多大牌來了踢得不行_海港www.ty42.com 日期:2021-03-04 09:31:00| 評論(已有259408條評論)2024-11-21
- 揭秘沙爾克04本賽季第四次換帥 亨特拉爾帶頭逼宮_格拉莫齊斯www.ty42.com 日期:2021-03-04 10:01:00| 評論(已有259444條評論)2024-11-21
- 皮中鋒上線!93分08秒絕平 梅西超萌兔子跳慶祝_皮克www.ty42.com 日期:2021-03-04 10:01:00| 評論(已有259441條評論)2024-11-21
Researchers create temporary tattoos you can use to control your devices
In the future, your tattoos could be much more than just ink designs.。Scientists have created a new2024-11-21- 朗格萊手球逃點?裁判專家意見不一 普隊犀利挖墳_巴薩www.ty42.com 日期:2021-03-04 08:31:00| 評論(已有259396條評論)2024-11-21
最新评论