Uploaded October 2022 | Updated September 2026, 2 weeks ago
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Figuring out the age of a blinking speck in the sky is a difficult feat, especially if considering how many types of stars there are. This is where a Hertzsprung-Russell meets a gyrochronologist.
Hosted by: Savannah Geary (they/them)
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Huge thanks go to the following Patreon supporter for helping us keep SciShow Space free for everyone forever: Jason A Saslow, David Brooks, and AndyGneiss!
Support SciShow Space by becoming a patron on Patreon: patreon.com/SciShowSpace
Or by checking out our awesome space pins and other products over at DFTBA Records: dftba.com/scishow
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Looking for SciShow elsewhere on the internet?
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Twitter: twitter.com/scishow
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Sources:
Interview with Eric Jensen from Swarthmore College
youtube.com/watch?v=IuKZjVlkXRQ
https://chandra.harvard.edu/edu/formal/variable_stars/bg_info.html
ucolick.org/~bolte/AY4/notes9/node2.html
iopscience.iop.org/article/10.3847/1538-4357/ac6035
https://astronomy.swin.edu.au/cosmos/m/main+sequence+lifetime
arxiv.org/pdf/0704.3068.pdf
Image Sources:
images.nasa.gov/details-PIA19341
commons.wikimedia.org/wiki/File:The_star_cluster_Messier_18_and_its_surroundings.jpg
commons.wikimedia.org/wiki/File:HRDiagram.png
commons.wikimedia.org/wiki/File:A_Hertzsprung–Russell_chart_of_stellar_evolution_(PSF).png
hubblesite.org/contents/media/videos/2010/28/647-Video.html?news=true
commons.wikimedia.org/wiki/File:Hertzsprung-Russell_Diagram_-_ESO.png
gettyimages.com/detail/photo/the-sun-royalty-free-image/520222808?phrase=the%20sun%20in%20space&adppopup=true
researchgate.net/figure/Rotation-periods-of-the-Praesepe-blue-and-the-Hyades-orange-star-clusters-derived-by_fig9_338899735
svs.gsfc.nasa.gov/13641
commons.wikimedia.org/wiki/File:HRDiagram.png
loc.gov/resource/gdcwdl.wdl_18412/?sp=48&st=image&r=-0.793,-0.178,2.587,1.653,0
commons.wikimedia.org/wiki/File:Suzhou_star_cartography.jpg
commons.wikimedia.org/wiki/File:Betelgeuse_(star).jpg
nasa.gov/mission_pages/hubble/science/stellar_ages.html
hubblesite.org/contents/media/images/2004/16/1534-Image.html?news=true
Start building your ideal daily routine! The first 100 people who click on the link will get 25% OFF Fabulous Premium: thefab.co/scishowspace9
Figuring out the age of a blinking speck in the sky is a difficult feat, especially if considering how many types of stars there are. This is where a Hertzsprung-Russell meets a gyrochronologist.
Hosted by: Savannah Geary (they/them)
----------
Huge thanks go to the following Patreon supporter for helping us keep SciShow Space free for everyone forever: Jason A Saslow, David Brooks, and AndyGneiss!
Support SciShow Space by becoming a patron on Patreon: patreon.com/SciShowSpace
Or by checking out our awesome space pins and other products over at DFTBA Records: dftba.com/scishow
----------
Looking for SciShow elsewhere on the internet?
SciShow on TikTok: tiktok.com/@scishow
SciShow Tangents Podcast: scishowtangents.org
Facebook: facebook.com/scishow
Twitter: twitter.com/scishow
Instagram: instagram.com/thescishow
----------
Sources:
Interview with Eric Jensen from Swarthmore College
youtube.com/watch?v=IuKZjVlkXRQ
https://chandra.harvard.edu/edu/formal/variable_stars/bg_info.html
ucolick.org/~bolte/AY4/notes9/node2.html
iopscience.iop.org/article/10.3847/1538-4357/ac6035
https://astronomy.swin.edu.au/cosmos/m/main+sequence+lifetime
arxiv.org/pdf/0704.3068.pdf
Image Sources:
images.nasa.gov/details-PIA19341
commons.wikimedia.org/wiki/File:The_star_cluster_Messier_18_and_its_surroundings.jpg
commons.wikimedia.org/wiki/File:HRDiagram.png
commons.wikimedia.org/wiki/File:A_Hertzsprung–Russell_chart_of_stellar_evolution_(PSF).png
hubblesite.org/contents/media/videos/2010/28/647-Video.html?news=true
commons.wikimedia.org/wiki/File:Hertzsprung-Russell_Diagram_-_ESO.png
gettyimages.com/detail/photo/the-sun-royalty-free-image/520222808?phrase=the%20sun%20in%20space&adppopup=true
researchgate.net/figure/Rotation-periods-of-the-Praesepe-blue-and-the-Hyades-orange-star-clusters-derived-by_fig9_338899735
svs.gsfc.nasa.gov/13641
commons.wikimedia.org/wiki/File:HRDiagram.png
loc.gov/resource/gdcwdl.wdl_18412/?sp=48&st=image&r=-0.793,-0.178,2.587,1.653,0
commons.wikimedia.org/wiki/File:Suzhou_star_cartography.jpg
commons.wikimedia.org/wiki/File:Betelgeuse_(star).jpg
nasa.gov/mission_pages/hubble/science/stellar_ages.html
hubblesite.org/contents/media/images/2004/16/1534-Image.html?news=true
