Something Strange Is Happening to the Iconic Star Polaris

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Hello and welcome! My name is Anton and in this video, we will talk about the star Polaris
Links:
https://arxiv.org/abs/2309.03257
https://webbtelescope.org/contents/early-highlights/webb-confirms-accuracy-of-universes-expansion-rate-measured-by-hubble
Hubble tension: https://youtu.be/ZCCDkCbYd_w
#polaris #star #astronomy

0:00 Intro to Polaris
1:20 New discoveries from the recent study
2:00 What stars are these?
3:45 Cepheid variables and JWST
4:50 Strange observations
7:00 Potential explanations
8:00 Could this cause a problem?

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Images/Videos:
Giuseppe Donatiello https://commons.wikimedia.org/wiki/File:Polaris_comp_s_%2825006858485%29.jpg
Warrick Ball CC BY-SA 4.0 https://en.wikipedia.org/wiki/Cepheid_variable#/media/File:Kappa_Pavonis_TESS_lightcurve.png
NASA https://www.youtube.com/watch?v=sXJBrRmHPj8
Jim Thomas  CC BY-SA 3.0 https://en.wikipedia.org/wiki/Polaris#/media/File:Dipper_polaris_cass.png
Ashley Dace CC BY-SA 2.0 https://en.wikipedia.org/wiki/Polaris#/media/File:Star_Trail_above_Beccles_-_geograph.org.uk_-_1855505.jpg
Timwether - CC BY-SA 4.0 https://en.wikipedia.org/wiki/Cepheid_variable#/media/File:Polaris_time-lapse_illustrating_Cepheid_type_variability.gif
European Southern Observatory  CC BY 4.0 https://en.wikipedia.org/wiki/Radial_velocity#/media/File:The_radial_velocity_method_(artist%E2%80%99s_impression).jpg
Rnt20 CC BY-SA 3.0 https://en.wikipedia.org/wiki/Radial_velocity#/media/File:Planet_reflex_200.gif

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Видео Something Strange Is Happening to the Iconic Star Polaris канала Anton Petrov