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White Dwarf

Bryce Space posted on May 25, 2021
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Description


A white dwarf, also called a degenerate dwarf, is a stellar core remnant composed mostly of electron-degenerate matter. A white dwarf is very dense: Its mass is comparable to that of the Sun, while its volume is comparable to that of Earth. A white dwarf's faint luminosity comes from the emission of stored thermal energy; no fusion takes place in a white dwarf. The nearest known white dwarf is Sirius B, at 8.6 light years, the smaller component of the Sirius binary star. There are currently thought to be eight white dwarfs among the hundred star systems nearest the Sun. The unusual faintness of white dwarfs was first recognized in 1910. The name white dwarf was coined by Willem Luyten in 1922. _____________________________________________________________________ Une naine blanche, également appelée naine dégénérée, est un reste de noyau stellaire composé principalement de matière dégénérée par électrons. Une naine blanche est très dense: sa masse est comparable à celle du Soleil, tandis que son volume est comparable à celui de la Terre. La faible luminosité d'une naine blanche provient de l'émission d'énergie thermique stockée; aucune fusion n'a lieu chez une naine blanche. La naine blanche connue la plus proche est Sirius B, à 8,6 années-lumière, le plus petit composant de l'étoile binaire Sirius. On pense actuellement qu'il y a huit naines blanches parmi les cent systèmes stellaires les plus proches du Soleil. La faiblesse inhabituelle des naines blanches a été reconnue pour la première fois en 1910. Le nom de naine blanche a été inventé par Willem Luyten en 1922. _____________________________________________________________________

Comments (14)


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jendellas

10:40AM | Tue, 25 May 2021

Interesting & wonderful image.

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brain1969

11:34AM | Tue, 25 May 2021

amazing work ... i like that you tell the story about it ...

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daggerwilldo

1:20PM | Tue, 25 May 2021

I really enjoyed reading the back story. A most beautiful and interesting visual to enjoy also.

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bakapo

2:38PM | Tue, 25 May 2021

Wow, yeah, this is so good!

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UteBigSmile

2:40PM | Tue, 25 May 2021

Your new image is wonderfully done!

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miwi

2:40PM | Tue, 25 May 2021

Klasse image,fantastic info,excellent work!!!!!!!!!!!!!!!!!!!

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BryceHoro

1:41AM | Wed, 26 May 2021

Beautifully done.

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Kordouane

3:05AM | Wed, 26 May 2021

Belle image et merci pour les explications, c'est sympa de voir de belles images tout en s'instruisant, merci pour le partage !!

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pchef

3:33AM | Wed, 26 May 2021

Une jolie illustration avec un excellent document écrit

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Koala44

4:32AM | Wed, 26 May 2021

Très belle création et un grand merci pour les explication. Bravo.

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madame

7:08AM | Wed, 26 May 2021

Superbe image, merci pour les informations qui sont fort intéressantes... excellent réalisation !!

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Jean_C

10:08AM | Wed, 26 May 2021

Un ciel impressionnant et des explications intéressantes, merci!

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Leije

1:15PM | Wed, 26 May 2021

Intéressant !

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RodS

5:04PM | Sat, 29 May 2021

Great render and information about these strange bodies.


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