Do stars come in different sizes?

Stars come in huge range of different sizes. Neutron stars can be just 20 to 40 km in diameter, whereas white dwarf can be very similar in size to Earth’s. The largest supergiants, on the other hand, can be more than 1500 times larger than our Sun.

Why do some stars appear to be larger or smaller?

A star’s brightness also depends on its proximity to us. The more distant an object is, the dimmer it appears. Therefore, if two stars have the same level of brightness, but one is farther away, the closer star will appear brighter than the more distant star – even though they are equally bright!

Why are all stars not the same size?

But for all other stars, their sizes are determined by that simple balance: the force from the outward radiation, at the surface, has to equal the inward pull of gravitation. Larger radiation forces means the star swells to larger sizes, with the largest stars of all swelling to billions of kilometers.

Why do stars glow at night?

Stars shine because they are extremely hot (which is why fire gives off light — because it is hot). The source of their energy is nuclear reactions going on deep inside the stars. In most stars, like our sun, hydrogen is being converted into helium, a process which gives off energy that heats the star.

Are all stars very similar?

Stars can be very different from each other?in color, brightness, temperature, size, and mass. For example, hot blue-white stars can reach 54,000F (30,000C) at their surface, ten times hotter than the coolest stars.

Are all star the same how do they differ from each other?

All that glitters Their brightness is a factor of how much energy they put out–known as luminosity–and how far away from Earth they are. Color can also vary from star to star because their temperatures are not all the same. Hot stars appear white or blue, whereas cooler stars appear to have orange or red hues.

Why do different stars have different sizes and masses?

Answer Wiki. Different stars have different sizes and different masses because of the different sizes and, to some extent, different materials in the cloud that collapsed to form the star.

What is the size of a star?

When we make our observations, we see that some stars are as small as only a few tens of kilometers in size, while others go all the way up to more than 1,500 times the size of our Sun. Of the supergiant stars, the largest one known is UY Scuti at around 2.4 billion kilometers in diameter, which is larger than Jupiter’s orbit around the Sun.

What do stars look like through a telescope?

Even through a telescope, most stars appear as simple points of light due to their incredible distances from us. Their differences in color and brightness are easy to see, but size is a different matter entirely.

How is a star formed?

A star is formed when a vortex is created in a cloud of gas, dust, and collapses through gravity. If there is insufficient hydrogen etc in this swirling vortex to form a large star, then a smaller one will form. This can range from what is known as a rogue planet, or a brown dwarf, all the way up to a hyper giant.