Is the Hertzsprung-Russell diagram still a valid instrument in studying stars, given that it is over 100 years old?
2 answers:
Answer:
Yes.
Explanation:
Hello,
As long as it shows important relationships between the size and color of stars, age wouldn't affect observation and measurement but will just provide more accurate results but the method is still valid.
Best regards.
Answer:
Yes, because it is still relevant today.
Explanation:
It shows the coloration of stars with each other, the brightness and all.
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In mordern periodic table there are all element given in modern periodic table
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Explanation:
D, Neon and argon are both noble gases and contain almost the same elements.
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