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Journal by hubie

Stunning new time lapse video shows 12 years of exoplanets orbiting their star:

In 2008, HR8799 was the first extrasolar planetary system ever directly imaged. Now, the famed system stars in its very own video.

Using observations collected over the past 12 years, Northwestern University astrophysicist Jason Wang [northwestern.edu] has assembled a stunning time lapse video of the family of four planets — each more massive than Jupiter — orbiting their star. The video gives viewers an unprecedented glimpse into planetary motion.

"It's usually difficult to see planets in orbit," Wang said. "For example, it isn't apparent that Jupiter or Mars orbit our sun because we live in the same system and don't have a top-down view. Astronomical events either happen too quickly or too slowly to capture in a movie. But this video shows planets moving on a human time scale. I hope it enables people to enjoy something wondrous."

[...] In November 2008, HR8799 made history as the first system to have its planets directly imaged. Wang, who was instantly fascinated by the system, has been watching it ever since. He and his colleagues applied for time on the W. M. Keck Observatory, located on the top of Mauna Kea in Hawaii, to observe the system each year.

After seven years of observations, Wang put together imaging data to create his first time lapse video of the system. Now, armed with 12 years of imaging data, Wang released the updated video, which shows the entire time period in a condensed 4.5-second time lapse.

[...] "In astrophysics, most of the time we are doing data analysis or testing hypotheses," he said. "But this is the fun part of science. It inspires awe."

The short YouTube video

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The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 2) by janrinok on Friday February 17 2023, @06:36AM (4 children)

    by janrinok (52) Subscriber Badge on Friday February 17 2023, @06:36AM (#1292133) Journal

    I am talking to AC. There is only one AC account and you only have one voice.

    It was the action of AC that necessitated the ban on commenting on the front page.

    It was AC who rejected the idea of stories being posted in a journal so that they could have a place to discuss anything they wished.

    It was AC who rejected a suggestion that resolved the problem of access to the front page stories.

    You are AC. I know who I am speaking to. I am the only person with whom you now hold a discussion.

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  • (Score: -1, Troll) by Anonymous Coward on Saturday February 18 2023, @07:31PM (3 children)

    by Anonymous Coward on Saturday February 18 2023, @07:31PM (#1292417)

    I enjoy our little talks, janrinok! But, despite your not remembering, they are becoming redundant. We have been over this all before. I am not the same AC as the AC you were talking to before, even though the resemblance is uncanny. At this point, I keep conversing with you out of a sense of sympathy. I can tell you are lacking stimulating social interaction, and really need some human contact. As Vice President Dan Quayle said, "A mind is a terrible thing to loose."

    • (Score: 2) by janrinok on Saturday February 18 2023, @08:09PM (2 children)

      by janrinok (52) Subscriber Badge on Saturday February 18 2023, @08:09PM (#1292428) Journal

      You keep saying that we cannot tell one AC from another. In which case, there is only one AC. Nobody is losing their mind. You are just AC.

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      I am not interested in knowing who people are or where they live. My interest starts and stops at our servers.
      • (Score: -1, Troll) by Anonymous Coward on Sunday February 19 2023, @08:43AM

        by Anonymous Coward on Sunday February 19 2023, @08:43AM (#1292525)

        Why do you keep deleting the truth about you? Are you scared?