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• Curating fascinating knowledge nuggets for your daily dose of enlightenment! 💡✨🧠📚🧬
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24/04/2024

Did you know ?
The diagram was devised by Ejnar Hertzsprung and Henry Russell.

INFINITE KNOWLEDGE

24/04/2024

Did you know ?
By comparing a star's brightness predicted by the H-R diagram with how far away it is.

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24/04/2024

Did you know ?
The H-R diagram shows how bright each colour star should be. If the star actually looks dimmer, it must be further away.

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23/04/2024

Did you know ?
Giant stars and white dwarf stars lie to either side of the main sequence stars.

INFINITE KNOIWLEDGE

23/04/2024

Did you know ?
The redder and cooler a star is, the dimmer it glows. Cool red stars tend to be smaller and older.

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23/04/2024

Did you know ?
The whiter and hotter a main sequence star is, the brighter it shines. White stars and blue-white stars are usually bigger and younger.

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23/04/2024

Did you know ?
Medium-sized stars form a diagonal band called the main sequence across the graph.

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22/04/2024

Did you know ?
Hot stars burn white or blue.

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22/04/2024

Did you know ?
Cool stars are red or reddish-yellow.

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22/04/2024

Did you know ?
The Hertzsprung-Russel (H-R) is a graph in which the temperature of stars is plotted against their brightness. The temperature of a star is indicated by its colour.

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22/04/2024

H-R Diagram

21/04/2024

Did you know ?
The space probes Pioneer 10 and 11 carry metal panels with picture messages about life on Earth into deep space.

INFINITE KNIOWLEDGE

21/04/2024

⭐️STAR FACT⭐️
The life chemical formaldehyde can be detected in radio emissions from the galaxy NGC 253.

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21/04/2024

Did you know ?
The Arecibo radio telescope beams out signals to distant stars.

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21/04/2024

Did you know ?
SETI is the Search for Extraterrestrial Intelligence - the program that analyzes radio signals of intelligent life.

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20/04/2024

Did you know ?

There is no scientific proof that any ET life form has ever visited the Earth.

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20/04/2024

Did you know ?

The Drake Equation was proposed by astronomer Frank Drake to work out how many civilizations there could be in our galaxy - and the figure is millions.

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20/04/2024

Did you know ?

If civilizations like ours exist elsewhere, they may be on planets circling other stars. This is why the discovery of other planetary systems is so exciting.

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20/04/2024

Did you know ?

Most scientists believe that if there is ET life anywhere in the Universe, it must be based on the chemistry of carbon, as life on Earth is.

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19/04/2024

Did you know ?

One extreme idea is that space clouds could become sentient (thinking) beings.

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19/04/2024

Did you know ?

Some scientists say that ET life could develop anywhere in the universe where there is a flow of energy.

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19/04/2024

Did you know ?

Extraterrestrial (ET) means 'outside the Earth'.

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19/04/2024

EXTRATERRESTRIALS

18/04/2024

Did you know ?

The Crab nebula is the remains of a supernova that exploded in AD 1054.

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18/04/2024

Did you know ?

The Ring nebula in Lyra is the best known of the planetary nebulae.

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18/04/2024

Did you know ?

Planetary nebulae are thin rings of gas cloud which are thrown out by dying stars. Despite their name, they have nothing to do with planets.

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18/04/2024

Did you know ?

The Horsehead nebula in Orion is the best-known dark nebula. As its name suggests, it is shaped like a horse's head.

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17/04/2024

Did you know ?

Dark nebulae not only have no light of their own, they also soak up all light. They can only be seen as patches of darkness, blocking out light from the stars behind them.

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17/04/2024

Did you know ?

Reflection nebulae have no light of their own. They can only be seen because starlight shines off the dust in them.

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17/04/2024

Did you know ?

The Great Nebula of Orion is a glowing nebula just visible to the naked eye.

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