Why there are no green stars? (Stars' Colors)

Why there are no green stars? (Stars' Colors)

🎼𝗠𝘂𝘀𝗶𝗰:

📫𝐎𝐮𝐫 𝐅𝐁 𝐏𝐚𝐠𝐞:

🎬𝐈𝐦𝐚𝐠𝐞𝐬, 𝐚𝐧𝐢𝐦𝐚𝐭𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐯𝐢𝐝𝐞𝐨𝐬 𝐜𝐫𝐞𝐝𝐢𝐭𝐬:
- Pexel
- Pixabay

📚𝐃𝐚𝐯𝐢𝐝'𝐬 𝐁𝐨𝐨𝐤𝐬
📕 𝗪𝗲𝗶𝗿𝗱 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲 𝗼𝗳 𝗜𝗻𝗳𝗶𝗻𝗶𝘁𝘆 𝗮𝗻𝗱 𝗕𝗲𝘆𝗼𝗻𝗱
📙 𝗪𝗲𝗶𝗿𝗱𝗲𝗿 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗘𝗱𝗴𝗲 𝗼𝗳 𝘁𝗵𝗲 𝗣𝗼𝘀𝘀𝗶𝗯𝗹𝗲
📗 𝗪𝗲𝗶𝗿𝗱𝗲𝘀𝘁 𝗠𝗮𝘁𝗵𝘀: 𝗔𝘁 𝘁𝗵𝗲 𝗙𝗿𝗼𝗻𝘁𝗶𝗲𝗿𝘀 𝗼𝗳 𝗥𝗲𝗮𝘀𝗼𝗻
** The kindle versions are available

📄𝗧𝗿𝗮𝗻𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝗼𝗻:A star’s color is determined mainly by temperature. From cooler to hotter, these colors are red, orange, yellow, white and blue. As you’ll have noticed, there are no green-looking stars. Why is that?

Stars are close to being black bodies. That means they don’t reflect any electromagnetic radiation that falls on them, and the only thing that determines their color is their temperature. If we look at the colors that stars emit at different temperatures, we end up with this graph.

If a star’s surface temperature is about 3000 Kelvin (about 2700 Celsius) it appears red because it emits mainly radiation in the red part of the spectrum. If a star’s surface temperature is 5300 Kelvin (about 5000 C) it appears white. In fact, it’s giving off a combination of colors but our brain interprets this combination as white.

For our eyes to see it as green, a star would have to emit only green light, which isn’t possible.

The Sun’s surface temperature is about 6000 Kelvin (about 5700 C) so it looks like white. But we usually see it as orange. This is because colors are scattered when they enter our atmosphere. The least scattered colors are mainly red and yellow. Therefore, on Earth, we see the Sun as a combination of red and yellow, which is orange. If we look at Sun in the space, we can see its true color – white.

Extremely hot stars emit all colors too, but mostly they emit blue light. Our eyes can also detect blue light easily because they have special cells that are sensitive to blue light. So, the hottest stars appear blue.

#green #star #blackbody

[johncronin]

All I can say is that back in the early spring of 1997, when Comet Hale-Bopp put on a spectacular show, visible even in areas with light pollution, I was fortunate enough to be in a dark sky area, with an amateur astronomer with a very good telescope (I think it was 12 inches, but may have been smaller), and we observed many celestial objects.

I distinctly remember viewing the Trapezium, which is an open cluster of stars in the Orion Nebula. This was direct observation through the telescope, so you don’t get the same view as a photograph with a long exposure, and it was, of course, through the atmosphere, but the stars and nebula around them looked distinctly green in color.

[aoconnor]

Great video! Thanks for posting the music artist in the video description also. It's relaxing.

[pablodaproducer]

So maybe in a different atmosphere the atmosphere was scared of the light differently and then we may be able to see a green star?

[artrisk]

What if we go to place green lgiht gets scattered, the green light should enter our eyes, for us to see the sun/sky as green, right?!

[soniakrol]

There are we just havent discobered them yet

[SyDatNguyen-rj]

There’s some mistake in this video. 3500 K star is reddish orange, 4300 K star is yellowish orange, 6000 k star is white and 10000k star is bluish yellow and >11000 k is blue

[xvrydo]

Erm ☝️🤓 actually, green stars exist, we just haven’t FOUND any yet.

[doychinkutsarov]

are there extremely large and hot stars emitting purple light?

[grabbinggears]

If our Star appears white from space, does that mean all stars viewed from space appear white even though they are different temperatures? From our eyes in space, all stars should appear white if that is the case.

[notchecosa]

Actually, there aren't any green stars because we haven't collected all the normal stars yet and the green comets have not appeared.

[HugoFilho.]

There are some mistakes in your video.
A star at 3000K would apear orangy-yellow(similar to incandescent light bulbs) to get red it needs temperatures lower than 1500K and the coldest discovered star is 1800K
The temperature-color scale shown is wrong, the Sun is white(not yellow) and anything hotter than 7000K is blue.

[AlvaroALorite]

You explained nothing. You just said it's impossible, not why.

[omeg]

false, they would need double the mass of our universe to be green