A relatively low surface temperature means that reg giants radiate relatively little energy per area unit, but since they have a very large surface area, the total amount of energy radiated is enormous.
Stars come in different shapes, sizes, colors. This is due to the amount of spectra and temperature in each for classifying stars.Astronomers often use the Hertzsprung-Russell (H-R) Diagram plots stars color, temperature, luminosity, spectral type, and even evolutionary type.
Stars shine on a cloudy night because their light is very bright and can penetrate through the clouds. Even though clouds can block some of the starlight, enough of it gets through to be visible to us on Earth. The brightest stars are still visible even on a cloudy night.
No, red giant stars are not the largest stars in the universe. There are stars known as supergiant and hypergiant stars that are even larger than red giants. These stars can be hundreds to thousands of times larger than our Sun.
The other stars do not appear as bright as the sun because they are much farther away. Even the closest stars apart from the sun are hundreds of thousands of times farther away. In terms of actual brightness, some stars are brighter than the sun.
The bright lights next to the moon could be planets such as Venus or Jupiter, or even stars. Planets tend to appear brighter than stars and have a steady, non-twinkling light. The specific location and time of observation can help identify which celestial bodies are next to the moon.
A star on "main sequence" is a period in a stars evolution.A white dwarf is a stellar remainA supergiant star is the size of a very big star.So they are completely different and not even related.
To be bright you need to be hot, close or have a large surface area. The brightest coolest stars are red super giants. They have such a large surface area, that even though their surface temperature is cool - in star terms - their large surface area makes them appear bright.
For example, Antares and Betelgeuse. (Even though the Sun is not categorized as a supergiant, don't forget that compared to anything on Earth, and to the whole Earth itself, the Sun is not a small thing.)
The sun is not the only star... There are many many others in the universe, they shine so bright that you can see them in the night sky even though they are very far away...
Stars come in different shapes, sizes, colors. This is due to the amount of spectra and temperature in each for classifying stars.Astronomers often use the Hertzsprung-Russell (H-R) Diagram plots stars color, temperature, luminosity, spectral type, and even evolutionary type.
Stars shine on a cloudy night because their light is very bright and can penetrate through the clouds. Even though clouds can block some of the starlight, enough of it gets through to be visible to us on Earth. The brightest stars are still visible even on a cloudy night.
No, red giant stars are not the largest stars in the universe. There are stars known as supergiant and hypergiant stars that are even larger than red giants. These stars can be hundreds to thousands of times larger than our Sun.
The other stars do not appear as bright as the sun because they are much farther away. Even the closest stars apart from the sun are hundreds of thousands of times farther away. In terms of actual brightness, some stars are brighter than the sun.
The bright lights next to the moon could be planets such as Venus or Jupiter, or even stars. Planets tend to appear brighter than stars and have a steady, non-twinkling light. The specific location and time of observation can help identify which celestial bodies are next to the moon.
Its callled light pollution, the sun shines so bright the it obscures even the brightest of stars.
To be bright you need to be hot, close or have a large surface area. The brightest coolest stars are red super giants. They have such a large surface area, that even though their surface temperature is cool - in star terms - their large surface area makes them appear bright.
Even though the rain hides the stars, even though the mist swirls the hills, even when the dark clouds veil the sky, God is by my side. Even when the sun shall fall in sleep, even when at dawn the sky shall weep, even in the night when storms shall rise, God is by my side. God is by my side. Verse 1 Bright the stars at night that mirror heaven's way to you. Bright the stars in light where dwell the saints in love and truth. Verse 2 Deep the feast of life where saints shall gather in deep peace. Deep in heaven's light where sorrows pass beyond death's sleep. Verse 3 Blest are they who sing the fellowship of saints in light. Blest in heaven's King. All saints adore the Lord, most high.