The brightness of stars varies because of many reasons.
1. The Distance. Some Stars are far away, and the light takes longer to reach us, so the star only appears to be darker then stars around it that may appear brighter.
2.The size. Some stars are massive, and appear brighter then others simply due to their size.
3. It isn't a star. what you may be looking at isn't a star. You may be seeing a satellite, quasar, or even a close white dwarf or neutron star.
4. Finally, you may be looking at the milky way. in which case, they all appear to be brighter then stars outside it. This also falls under distance.
It makes sense to think that the hotter the star is, the more light it will actually put out. From coolest to hottest, star colors are Brown, Red, Orange, Yellow, Yellowish White, White, Blue White, and Blue. Brown being the coolest, blue being the hottest. So therefore, Brown would be the least luminous, blue would be the brightest. You will also see stars of the same color that look brighter or dimmer. This also has to do with the distance from us that the star is. The further away, the less light will travel close enough for us to see.
Some advantages are that the more cells (Power sources) you add, the brighter the outcome, while in parallel the voltage is the same through out.
Some like it, others do not.
Some of the subcastes in OBC and others in FC.
Some are, others aren't. See the related link for prices of downloads.
'Appear' would become 'appeared' in the past tense so the sentence would simply be 'some stars appeared to be brighter than others'.
Three possibilities: It is brighter (some are brighter than others), it is bigger, or it is closer to earth.
Stars appear brighter depending on their size, temperature, and distance from Earth. Larger and hotter stars emit more light, making them appear brighter. Additionally, stars that are closer to Earth will appear brighter than those that are farther away.
Because they are closer or actually brighter.
Stars look brighter than others due to factors such as their size, temperature, and distance from Earth. A larger and hotter star will appear brighter, as will a star that is closer to us. The brightness of a star as seen from Earth is measured by its apparent magnitude.
Because some are larger than others and some are closer than others.
A stars brightness depends on two factors; its distance from us and its actual brightness (absolute magnitude). The actual brightness of a star depends on various factors, such as its mass, its temperature and its age.Consider two stars of the same actual brightness (absolute magnitude) - if one of them is much closer, then is will be brighter than the further one. It will appear brighter, even though it would be the same side by side - it can be said to be apparently brighter (higher apparent magnitude) due to its distance.A:They appear bigger and brighter because they really are bigger and brighter, but even if they are not bigger and brighter it could be because they are closer.
A stars brightness depends on two factors; its distance from us and its actual brightness (absolute magnitude). The actual brightness of a star depends on various factors, such as its mass, its temperature and its age.Consider two stars of the same actual brightness (absolute magnitude) - if one of them is much closer, then is will be brighter than the further one. It will appear brighter, even though it would be the same side by side - it can be said to be apparently brighter (higher apparent magnitude) due to its distance.A:They appear bigger and brighter because they really are bigger and brighter, but even if they are not bigger and brighter it could be because they are closer.
It is a mixture of both. A hotter star will generally appear brighter than a cooler star of the same size. Similarly, a large star will appear brighter than a small one of the same temperature. The brightest stars are generally red supergiants, which are comparatively cool stars, but are so large that their size more than makes up for it. A star's apparent brightness from any given vantage point also depends on its distance. The closer a star is to you, the brighter it will appear.
A medium-sized star may appear brighter than other stars due to its luminosity, which is a measure of the total amount of energy it emits per unit time. This brightness is determined by factors such as the star's size, temperature, and distance from Earth. In general, larger and hotter stars tend to be more luminous and thus appear brighter in the night sky.
Stars appear to shine more brightly than others due to differences in their size, temperature, and distance from Earth. Larger, hotter stars emit more energy and appear brighter. Stars that are closer to Earth also appear brighter, as they are more luminous when viewed from a shorter distance.
The brightness of a star depends on its intrinsic luminosity, distance from Earth, and atmospheric conditions. Stars appear brighter if they have high luminosity, are closer to Earth, or if they are visible in a clear, dark sky away from light pollution.