★ The Biggest MONSTER Stars - Compared How Far Away Is It - 05 - Nearby Stars (4K) 2 days ago   02:45

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Heli
Looking up at the sky inspires deep moments of introspection and curiosity. It’s easy to feel small under a starry night sky.



★ TOP 10 - Best of Hubble Space Telescope - 2015 ► https://tomfromhr.com/videow/Bcn19_...

THE SUN is the star at the center of the Solar System and is by far the most important source of energy for life on Earth. It is a nearly perfect spherical ball of hot plasma with internal convective motion that generates a magnetic field via a dynamo process. Its diameter is about 109 times that of Earth, and it has a mass about 330,000 times that of Earth, accounting for about 99.86% of the total mass of the Solar System. Chemically, about three quarters of the Sun's mass consists of hydrogen, whereas the rest is mostly helium, and much smaller quantities of heavier elements, including oxygen, carbon, neon and iron

THE PISTOL STAR is a blue hypergiant and is one of the most luminous known stars in the Milky Way Galaxy. It is one of many massive young stars in the Quintuplet cluster in the Galactic Center region. The star owes its name to the shape of the Pistol Nebula, which it illuminates. It is located approximately 25,000 light years from Earth in the direction of Sagittarius. It would be visible to the naked eye as a fourth magnitude star if it were not for the interstellar dust that completely hides it from view in visible light.

VY CANIS MAJORIS (VY CMa) is a red hypergiant star located in the constellation Canis Major. It is one of the largest stars (at one time the largest known) and also one of the most luminous of its type, and has a radius of approximately 1,420 ± 120 solar radii (equal to a diameter of 13.2 astronomical units, or about 1,976,640,000 km), and is located about 1.2 kiloparsecs (3,900 light-years) from Earth.

UY SCUTI is a bright red supergiant and pulsating variable star in the constellation Scutum. It is one of the leading candidates for being the largest known star by radius and is also one of the most luminous of its kind. It has an estimated average median radius of 1,708 solar radii, or a diameter of 2.4 billion km (1.5 billion mi; 15.9 AU); thus a volume 5 billion times that of the Sun. It is approximately 2.9 kiloparsecs (9,500 light years) from Earth.

Narrated by Scott Wayne
Created by Anders Heli Hansen

★ The Biggest MONSTER Stars - Compared to our Sun - Infographic Animation | HD © Heli
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Comments 859 Comments

Sakata Gintoki
pistol star looks amazing
Khandaker Tashfiq
Dangerous stars😱😱😱
Ant Bar
Soo a star bigger than a solor system ?? Seems legit
Paras Singh
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Kabir Alkasim
This is mericle sciences
super věci
😮
Spongbob Squarepants
By canis midoris No sense
Sara Amador
😂😂😂😂😂😂😂😂😂😂😂
Logan Poo
Jooh why scooti is that how u say it
Filip Mikrutkowski
Yeah Earth is the first planet from the sun... its Mercury,Venus,Earth,Mars,Jupiter,Saturn,Uranus,Neptune and pluto man...
FlatEarthMiel miel
FLAC SHIT
Baldi gamer 2
Top 10 Largest Stars
TV Geminorum : 987 million km
MY Cephei : 999.9 million km
MU Cephei : 1.1 billion km
S Persei : 1.55 billion km
VV Cephei A : 1.8 billion km
VY Canis Majoris : 2.3 billion km
NML Cygni : 2.6 billion km
V384 Cephei : 3 billion km
WOH G64 : 3.6 billion km
UY Scuti : 4.2 billion km
Orb Of The Magi
The real biggest stars possibly is not even bigger than compare with the distance between from The sun to Pluto... I guess when The star is more like 1.5x bigger than UY Scuty a lot of It's some massess will be detached away...
Laura Lopez
Esto es mas falso que mi abuela haciendo parkour
Sagar Mittal
What about eta carinae vs canis
L&L Onuki
It’s not Ju wi scuty but uy scuti
Last Night Boutique
You forgot too mention BETELGEUSE IDIOT
Dragana Opancina
Rigel
THE REMIX WOLF
Can u go to the sun
sabbir hoque mondal
ALL GOOD NIGHT.
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How Far Away Is It - 05 - Nearby Stars (4K) ★ The Biggest MONSTER Stars - Compared 2 days ago   27:21

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Text at http://howfarawayisit.com/wp-content/uploads/2018/05/Nearby-Stars-1.pdf

In this segment of our video book, we take a look at our stellar neighborhood and how we know how far away these nearby stars are.

We cover the first stellar parallax measurement form the star Cygni 61. This includes the definition of ‘parsec’ and ‘light year’. We then cover the Alpha Centauri system (Proxima Centauri, Alpha Centauri A & B), and use it to show how we calculate the mass of binary star systems. Then we examine our stellar neighborhood including: Barnard’s Star with its Proper Motion, Wolf 359, Lalande 21185, Sirius A & B, 61 Cygni, Altair, Fomalhaut with its planet, and Vega.

A deeper look into what we mean by ‘luminosity’ is outlined. We point out that it is measured in watts just like a light bulb and that its value over distance from a point source follows the ‘inverse square law’. We use our Sun as an example and introduce Einstein’s famous “energy = mass time the speed of light squared” formula.

We then cover some more stars including: Pollux, Arcturus, Capella, and Castor. Having reached the limits of ground based telescopes to measure parallax, we discuss the European Space Agency’s (ESA) Hipparcos satellite and the more distant stars it helped fined parallax for including: HD 189733, Aldebaran, Mizar, Spica, Mira, Polaris, and Antares. Along the way, we build the mass vs. luminosity empirical graph.

We then cover the new ESA satellite Gaia that is mapping over a billion stars in the Milky Way and nearby galaxies. We follow that with a look at a few stars too far for Hipparcos but well within the range of Gaia: Betelgeuse, CH Cyg, and Rigel.

We end by pointing out that parallax only takes us to a small percentage of stars in the Milky Way and that we’ll need to know more about light to go any further.

Music

@0:31: Tchaikovsky - Symphony No 6, Pathétique IV Finale. Prague Festival Orchestra; from “Must-Have Adagio Masterpieces”

@10:40: Suppe - Poet and Peasant Overture: Hungarian State Opera Orchestra & Janos Sandor, Janos Sandor, Hungarian State Opera Orchestra; from the album Franz von Suppé: Poet & Peasant

@17:51: Puccini - Manon Lescaut - Donna non vidi mai - I have never seen a woman like this; Sofia Philharmonic Orchestra; from album “100 Must-Have Opera Karaoke”

@20:38: Schubert - The Trout from album “A Calendar of Classics - A 12 CD Set Of Romantic Classics For Every Month Of The Year”

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