4 ms·
A bit more cosmic scale that we can see over time are light echos: https://en.wikipedia.org/wiki/Light_echo https://en.wikipedia.org/wiki/Light_echo In particu
by shagie 4y ago
A bit more cosmic scale that we can see over time are light echos: https://en.wikipedia.org/wiki/Light_echo https://en.wikipedia.org/wiki/Light_echo
In particular, the at https://en.wikipedia.org/wiki/V838_Monocerotis https://en.wikipedia.org/wiki/V838_Monocerotis there's a video of the echo.
For another dynamic area with things changing on a human lifespan, the black hole at the center of the galaxy we can watch stars orbit it. https://youtu.be/XA7CAVm31z0 https://youtu.be/XA7CAVm31z0
- mnw21cam 4y agoThe classic example of this is the Hubble Variable Nebula. See https://en.wikipedia.org/wiki/NGC_2261 https://en.wikipedia.org/wiki/NGC_2261 and https://www.youtube.com/watch?v=LeiVERr2J2Q https://www.youtube.com/watch?v=LeiVERr2J2Q
- shagie 4y agoWR 140 is also a neat one with cosmic scale structures. https://en.wikipedia.org/wiki/WR_140 https://en.wikipedia.org/wiki/WR_140 And the mechanism for it - https://www.jpl.nasa.gov/news/star-duo-forms-fingerprint-in-space-nasas-webb-finds https://www.jpl.nasa.gov/news/star-duo-forms-fingerprint-in-...
- Maursault 4y agoVery cool video, but mislabeled. It shows stars approaching and passing their perihelion to SagA* 27Kya, not complete orbits.