RS PUPPIS. как выглядит настоящее "световое эхо"

[aerastov]

This movie shows the reflection nebula around the Cepheid variable RS Puppis at seven equally spaced intervals during its 41.4-day pulsation period. Each time RS Puppis reaches maximum brightness, it sends another wave of illumination into the surrounding dust. Thus a pattern of apparently expanding bull's-eyes surrounds the variable star, similar

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[aerastov]

https://www.flickr.com/photos/stephen63/9642978248/in/photostream/

[aerastov]

https://aavso.org/vsots_rspup

[aerastov]

https://www.aanda.org/articles/aa/pdf/2009/08/aa10280-08.pdf

[aerastov]

https://ui.adsabs.harvard.edu/abs/2009A%26A...495..371B/abstract

[aerastov]

https://www.aanda.org/articles/aa/pdf/2008/10/aa8961-07.pdf

The long-period Galactic Cepheid RS Puppis

[aerastov]

https://hubblesite.org/uploads/video_file/video_attachment/5184/STScI-H-v1953a-1920x1080.mp4

https://hubblesite.org/uploads/video_file/video_attachment/5184/STScI-H-v1953a-1920x1080.mp4