The complicated names given to some stars, are often abbreviations of the institution/programs that photograph/register them - and then simply given a number. NGC are pretty common, for example - and stands for "New General Catalogue". Thousands of stars are named "NGC" followed by some number.

"I wonder why that star is white" Stars come in a spectrum of colors, mainly ranging from deep red/brown to white/blue. There are many factors at play but the short answer is temperature. Our sun's surface temperature is around 5800K. Sirius A's surface temp is around 10,000K, roughly twice as hot as our sun, and thus is more white in color.

@andreabindolini7452

2 жыл бұрын

In fact, even the Sun is white (the "yellow dwarf" definition is deceptive). Or, if we want analyze his spectrum and find out the frequency in which it emits the most, we should say it is green. Is not by chance that plants are green too.

@Nichwar19

Жыл бұрын

The white stars are looking fricking good

@CarlosHerrera-fh2qo

Жыл бұрын

That's why we cannot see green stars, we need to see them as White a neutral color so we can see the blue and red. because our eye evolved with the light frecuency of a green star, that's why plants reflects that color because they need to catch other colors less abundant and yellow green is the most abundant.

Astronomical reaction! :) Well done dear KZread STAR! !

Interesting fact: The smallest known stars are only city sized (sometimes less than 30 miles across). These are neutron stars, which are what some huge stars collapse into being after they die.

@itsKNR

2 жыл бұрын

Little Stars, but extremely dense and dangerous.

The stars have colours depending on their surface temperature. Cooler stars have a reddish white glow while the hottest stars have a bluish-white glow. Red has a lower energy light particles than blue light, hence red is more present in cooler stars. When things get millions of degrees hot, they emit X-rays, like in neutron stars, black hole accretion discs, etc.

@kushagrasharma6679

2 жыл бұрын

I thought it is due to Doppler effect

Yeah, just to make sure you understood, they numbers they are giving are not distances, but sizes in km. Remember, some of these objects they are showing are moons, planets and stars. The colors are a representation of their actual colors. Here are the reasons and classifications for stars: The color that a star appears depends mainly on the temperature that it burns at. More specifically, the color is directly related to the surface temperature of a star. In the lowest temperature range, stars appear in the red color family. At the highest temperatures, stars appear blue. Here is a list of the temperature ranges and the colors that you will see: Red - 3,000° - 6,000° Fahrenheit (1,649° - 3,316° Celsius): Type M Orange - 6,000° - 8,500° Fahrenheit (3,316° - 4,704° Celsius): Type K Yellow-White - 8,500° - 10,500° Fahrenheit (4,704° - 5,816° Celsius): Type G White - 10,500° - 13,000° Fahrenheit (5,816° - 7,204° Celsius): Type F White - 13,000° - 17,500° Fahrenheit (7,204° - 9,704° Celsius): Type A Blue-White - 17,500° - 50,000° Fahrenheit (9,704° - 27,760° Celsius): Type B Blue - 50,000° - 100,000° Fahrenheit (27,760° - 55,538° Celsius): Type O

Those 2 spheres was the biggest!!!

I never knew the Sun was that big, these videos always blow my mind, I was waiting for her to say Uranus is also beautiful, I would have lost it

Great reaction! Always fun to see people amazed by the science.

2:58 - *_Technically, our sun should have been white too in that presentation: While we see it as somewhat yellow, that is only because the Earth's atmosphere modifies it to appear yellowish, but it's light is actually white (So if you ever saw a sci-fi movie in which you see the sun from space as yellow, that was a mistake: It should have appeared white -Though many filmmakers, even if they know this, will still make it yellow because it is easier for the general public to recognize it as our sun that way). Stars like ours are called white dwarves_*

Hi, nice reaction! :) That said: At the beginning you mentioned "Oh, they are showing the distance". That is wrong. They are showing the diameter of those planets and other space objects. Not their distance to earth. Greetings Mega

This was a good watch with you Dasha!

The best video of this type is "Universe Size Comparison 2020" is just epic with better graphics and extremely well made.

oh wow that shirt and jacket are amazing!

Very interesting, Dasha!

WOW WOW FANTASTIC😮

i believe since this video, even bigger stars that UY scuti have been discovered

To answer your question on star colors, you can consider the colors to be a visible representation of their temperature -- brown and red are the coldest (still around 2,500-3,000°C) while white and blue are the hottest (anywhere between 7,500-50,000°C). The Sun falls in between these two ranges at around 5,300°C, so it's considered a yellow dwarf, though technically it's more white than yellow. What's interesting about yellow dwarfs is that they also output most of their light in green wavelengths with almost as much in red wavelengths. This gives the impression of yellow, but if we followed classification correctly, it would be a green dwarf! I believe "white dwarf" was also not chosen because that is a completely different type of star.

Nebula orion is so beautiful

Thanks!

Not distance. Diameter. Also, Promixa Centauri is a small star, not a burning planet :)

I was waiting for this reaction ❤ , universe size comparison. Proxima centouri is not a planet, it's the nearest star to earth after sun but still 4 light years away. The rest are some stars of various life stages and the red ones are red supergiants, the largest stars ever known. Uy scuti was considered as the largest but stephenson 2-18 holds the current record. It could fill upto Saturn's orbit if placed instead of sun in our solar system. The other are black hole , supermassive blackholes and nebulas are the birth stages of a star made up of cloud of gas , dust and light. Then the milky way and ic1001 is a supermassive galaxy and bootes void is an empty space where there are little or no galaxies.

I love watching shows about the universe i watch them and history channels .

who else we're shock after Betelgeuse pop in😅😂.

nice video :) the number is the Diameter of the object

I highly recommend you react to "TIMELAPSE OF THE FUTURE: A Journey to the End of Time". It's amazingly well made and will blow your mind

Not just pretty but educational as well. 😊

OBAFGKM = the 'colors' of stars (spectral type).

Stars are different colors depending on their size, magnitude, and what elements are contained within the star. Depending on what material it’s burning and how much it has to go through results in the wide range of colors you saw in this video! (In fact when our sun dies it will actually be reduced to a much smaller red dwarf star.)

And it’s all sold inside multi-verse

Like the planet's on fire? Not quite. :-)

I am the 3000th subscriber

The kms they show is not distance, it's the diameter of each object.

Bootes Void is pretty spooky

For a more digestible reference, UY Scuti is so big, if it were swapped out for our sun, it's surface would very nearly reach Neptune's orbit, and would swallow up every other planet closer than it.

It's not the distance, it's the size! 😁✌🏼

@janpersson9818

2 жыл бұрын

@@WR-yc8ts I'm thinking it's the diameter, why would they go with the radius?

@Cassxowary

2 жыл бұрын

@@WR-yc8ts definitely diametre

Every star after Vega is a star at the end of it's life. Called red giant

Dasha is dang cute it hurts

damn i feel so small we arent even a grain of sand in the universe

@hurannie

Жыл бұрын

Atom

You should react to "star size comparison 2" too.

And that is only our universe....

@hurannie

Жыл бұрын

I don't think there's another universe

@malelonewolf80

Жыл бұрын

@@hurannie I have no doubt that there is an infinite number of universes. However, most of those universes can probably not sustain life.

I like these non movie reaction videos

Different composition and heat lead to the different colors of a star there is another video that shows the size of the observable universe also there is planet u think they recently found which is a diamond a big ass planet size diamond 😀

If you want to drive yourself crazy, think about what 'infinity' means.

@scipioafricanus5871

2 жыл бұрын

Now this is why I revel in my ignorance.

@dennisweifenbach2647

2 жыл бұрын

@@scipioafricanus5871 - I think, with regards to the universe, we are all ignorant to the enormity of it all.

You should react to "The Fallen of World War II" by Neil Halloran and to HBO's "Chernobyl".

we are like atoms, and like a gods at the same time, a dot iin the timeline, but for us its a whole life full of moments... x)

Try Titans Of Space in Vr... If this interests you it will be a fun experience

Hypergiant stars, very big...burn bright, die fast. It’s good for our sun to be the size it is.

The colors represent temperature of that star. Red is the coolest & Blue stars are the hottest. It goes Red, Orange, Yellow, White & Blue. Wolf Rayet Stars are by far the hottest. Space is mind blowing once you're actually able to wrap your mind around it. Our sun seems huge & in our corner of the universe it is. The Sun makes up 99.8% of all the mass in our solar system. There are other start out there that literally make it look like a light bulb. Stephenson 2-18 could fit 10 billion Sun's inside it.

2:43 I know that you did not call Proxima Centauri a planet😭

You're so cute. Love your accent and curiosity. You're intelligent enough to understand this stuff too. Seems rare in humans lately.

btw proxima centauri is a star

❤❤

The universe is 93 billion light years

React to top 10 terrifying animals, you are glad extinct.

Please do a reaction to Time lapse of the future a journey to the end of Time.

Yes we are like dust but our problems here on Earth feels as big as the Universe

Fun fact: the sun is actually white not yellow

different suns burn different colors depend on their temperature, the white ones are much hotter than the yellow and the red ones.

Hello Dasha! Love your reactions! Please do next this "Black Hole Comparison: kzread.info/dash/bejne/g5uCpsOoZ9CaYbA.html I have seen a lot of these celestial objects comparisons, and this is one of the most breathtaking. And talking about dramatic music...just WOW!

I somehow feel complete after watching this !

It isn't distance its size

Wow,that was a painful watch .

react to , black veil bridges , bring me the horizon , asking alexandria ,pierce the veil , sleeping with sirens , within temptation .

Wow that room has a really bad echo

Is a.Chanel Rusia

Hii

do you like scary videos?

Some like this video but it doesn't really tell you much.

bro ur almost inglish but ur russian

watch some movies

Проксима центавра не планета, это звезда

1:16 you're WRONG

6:34 I'm the opposite. I lean in the direction of Neil deGrasse Tyson "Many people feel small because they're small and the universe is big, but I feel big. Because my atoms, came from those stars." From a video called "The most astounding fact" Should definitely check it out. I see it in the bigger scope, we are simply a cycle of life in a never ending process. Eventually... once our sun swells into a red dwarf in a few billion years, our planet will be consumed and explode. Sending our atoms back into space. And WE will become the creator, giving birth to the next forms of life. WE will usher in the next cycle in far away worlds,. Long after we are dead and gone. You may feel small, but it is where we come from, and will return to. We are all part of something larger than we will ever know. I know I will eventually find galaxies we will never reach in our lifetime. So that is why I don't feel small, or insignificant. Becoming a parent to those worlds someday, that is what brings me comfort, and why I don't fear death.

russia ? 🤨

@pamorisshorts5966

Жыл бұрын

bloodclart

@stevecarrell-U.S.A

Жыл бұрын

@@pamorisshorts5966 no bro 😆

@pamorisshorts5966

Жыл бұрын

@@stevecarrell-U.S.A raasclart

So this chick doesn't know stars are white blue green and red. Actually our star is actually white so idk why it's always perpetrate as yellow/orange.