Are halo stars Hot or cold?
Are halo stars Hot or cold?
Several distinct components of galaxies comprise the halo: the stellar halo. the galactic corona (hot gas, i.e. a plasma) the dark matter halo.
How fast is the Milky Way moving through space?
astounding 1.3 million miles per hour
Does the Milky Way move through space?
Does the Milky Way move through space? The speed of light is just under 300,000 km/s or 670 million miles per hour, so the Milky Way is moving through the Universe at circa 0.2% of the speed of light.
How fast is the Milky Way moving towards Andromeda?
about 70 miles
Does the sun move in space?
Yes, the Sun – in fact, our whole solar system – orbits around the center of the Milky Way Galaxy. We are moving at an average velocity of 828,000 km/hr.
What would happen if the Earth stopped spinning for 42 seconds?
Assuming that the earth stops suddenly for 42 seconds and then starts spinning again at its normal speed, here’s what would happen: 1. If the earth stops spinning suddenly, the atmosphere will continue to spin. The winds will also cause erosion to the earth’s crust.
How many Earths can fit in the sun?
1.3 million Earths
How many Jupiters can fit in the sun?
1,000 Jupiters
How many Earths can fit in the largest star?
1 Answer. About 7.5477×1010 earths can fit in VY Canis Majoris.
How many suns can fit in the biggest star?
9.3 billion
How many Earths can fit in the universe?
By dividing the two volumes we get a factor of 3.2⋅1059, or written as decimal number: The observable comoving volume of the universe is about 320,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000-times the volume of Earth.
How many Earths can fit in Mars?
With a radius of 2,106 miles (3,390 kilometers), Mars is about half the size of Earth.
How many Earths can fit in a galaxy?
Dividing the volume of the Milky Way by the volume of the Earth, you get (6.7 X 10^(51))/(10^12) =~ 6.7 X 10^(39) Earths that can fit in the volume of the Milky Way galaxy.
How many Earths can fit inside of Saturn?
700 Earths
How many Earths could fit in Neptune?
57 Earths
Did Mars have rings?
Currently, Mars has no rings and two small moons: Deimos (12 kilometres in diameter) and Phobos (22 kilometres). Deimos lies farther out and takes slightly more than a Martian day to orbit the planet. At the same time, material from the ring would have moved inward and steadily rained down on Mars.
How many Venus can fit in the earth?
This means that Venus is roughly 0.9499 the size of Earth and 0.815 as massive.
Is Venus hot or cold?
The average temperature on Venus is 864 degrees Fahrenheit (462 degrees Celsius). Temperature changes slightly traveling through the atmosphere, growing cooler farther away from the surface. Lead would melt on the surface of the planet, where the temperature is around 872 F (467 C).
What is the hottest planet?
Venus
Why is Mars so red?
Well, a lot of rocks on Mars are full of iron, and when they’re exposed to the great outdoors, they ‘oxidize’ and turn reddish – the same way an old bike left out in the yard gets all rusty. When rusty dust from those rocks gets kicked up in the atmosphere, it makes the martian sky look pink.
Can you breathe on Mars?
Breathing on Mars Without a pressure suit, no amount of breathable oxygen delivered by any means will sustain oxygen-breathing life for more than a few minutes. In these conditions humans die within minutes unless a pressure suit provides life support.
Can we breathe on Titan?
It is cold on Titan (surface temperature of about -290 degrees F). And people would need to wear respirators to breathe oxygen, since the atmosphere is mostly nitrogen. The light on Titan is a little dim, like just after a sunset here on Earth, due to the haze particles in the thick atmosphere.