*wikipic*
(line points to “galactic center”)
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*as of ‘17 SEPTEMBER 2023’*
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*SATELLITE IMAGES*
*SPACE.COM LINK*
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🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀
🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀🛰👽🚀
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*the “milky way” is the ‘galaxy’ that contains our ‘solar system’*
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(its name “milky” is derived from its appearance as a ‘dim glowing band’ arching across the ‘night sky’ whose individual ‘stars’ cannot be distinguished by the ‘naked eye’)
(the term “milky way” is a translation of the latin via lactea, from the greek γαλαξίας κύκλος (galaxías kýklos, “milky circle”))
(from ‘earth’, the ‘milky way’ appears as a ‘band’ because its ‘disk-shaped’ structure is viewed from within)
(‘galileo galilei’ first resolved the ‘band’ of ‘light’ into individual ‘stars’ with his ‘telescope’ in ‘1610’)
(until the ‘early 1920s’, most astronomers thought that the ‘milky way’ contained all the stars in the ‘universe’)
(following the 1920 ‘great debate’ between the astronomers ‘harlow shapley’ + ‘heber curtis’, observations by ‘edwin hubble’ showed that the ‘milky way’ is just 1 of many ‘galaxies’—now estimated to number as many as 200 billion ‘galaxies’ in the ‘observable universe’)
(the ‘milky way’ is a ‘barred spiral galaxy’ that has a diameter usually considered to be about ‘100,000–120,000’ ‘light-years’ but may be ‘150,000–180,000’ ‘light-years’)
(the ‘milky way’ is estimated to contain ‘100–400’ billion stars, although this number may be as high as ‘1 trillion’)
(there are probably at least ‘100 billion planets’ in the ‘milky way’)
(the ‘solar system’ is located within the ‘disk’, about ‘27,000 light-years’ from the ‘galactic center’, on the inner edge of one of the ‘spiral-shaped’ concentrations of ‘gas’ and ‘dust’ called the “orion arm”)
(the stars in the inner ≈10,000 light-years form a ‘bulge’ and one or more bars that radiate from the ‘bulge’)
(the very center is marked by an intense ‘radio source’, named ‘sagittarius A*’, which is likely to be a ‘super-massive black hole’)
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(‘stars’ + ‘gases’ at a wide range of distances from the ‘galactic center’ orbit at approximately “220 kilometers per second”)
(the constant rotation speed contradicts the laws of keplerian dynamics and suggests that much of the mass of the milky way does not emit or absorb electromagnetic radiation)
(this mass has been given the name “dark matter”)
(the rotational period is about 240 million years at the position of the ‘sun’)
(the ‘milky way’ as a whole is moving at a velocity of approximately 600 km per second with respect to ‘extragalactic frames of reference’)
(the oldest ‘stars’ in the ‘milky way’ are nearly as ‘old’ as the ‘universe’ itself and thus must have formed shortly after the ‘big bang’)
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(the ‘milky way’ has several ‘satellite galaxies’ and is part of the ‘local group’ of ‘galaxies’, which is a component of the ‘virgo supercluster’, which is itself a component of the ‘laniakea supercluster’)
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*👨🔬🕵️♀️🙇♀️*SKETCHES*🙇♂️👩🔬🕵️♂️*
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💕💝💖💓🖤💙🖤💙🖤💙🖤❤️💚💛🧡❣️💞💔💘❣️🧡💛💚❤️🖤💜🖤💙🖤💙🖤💗💖💝💘
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*🌈✨ *TABLE OF CONTENTS* ✨🌷*
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🔥🔥🔥🔥🔥🔥*we won the war* 🔥🔥🔥🔥🔥🔥