- What planet is the brightest?
- What are the 13 planets in our solar system?
- What is the brightest star?
- Is the sun technically a star?
- Which is the biggest star?
- What color is the sun?
- How close is Venus to Earth today?
- Why is the Sun a star and not a planet?
- Why is Sun called yellow dwarf?
- What is the most beautiful star?
- Can a planet explode?
- Who invented Earth?
- Do stars twinkle?
- What is the hottest star in the universe?
- Is a planet a star?
- What is the hottest planet?
- How cold is the moon?
- What generation star is the sun?
- Is the sun considered a star or a planet?
- Why is Venus called Earth’s sister?
- What is our sun’s star name?
What planet is the brightest?
VenusVenus can often be seen within a few hours after sunset or before sunrise as the brightest object in the sky (other than the moon).
It looks like a very bright star.
Venus is the brightest planet in the Solar System..
What are the 13 planets in our solar system?
Here are the planets listed in order of their distance from the Sun:Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. An easy mnemonic for remembering the order is “My Very Educated Mother Just Served Us Noodles.”Mercury: … Venus: … Earth: … Mars: … Jupiter: … Saturn: … Uranus:More items…•
What is the brightest star?
Sirius ASirius A and B. The brightest star in the sky is Sirius, also known as the “Dog Star” or, more officially, Alpha Canis Majoris, for its position in the constellation Canis Major. Sirius is a binary star dominated by a luminous main sequence star, Sirius A, with an apparent magnitude of -1.46.
Is the sun technically a star?
General characteristics. The Sun is a G-type main-sequence star that comprises about 99.86% of the mass of the Solar System. The Sun has an absolute magnitude of +4.83, estimated to be brighter than about 85% of the stars in the Milky Way, most of which are red dwarfs.
Which is the biggest star?
The largest known star in the universe is UY Scuti, a hypergiant with a radius around 1,700 times larger than the sun.
What color is the sun?
But, as can be seen in the image above, it emits most of its energy around 500 nm, which is close to blue-green light. So one might say that the sun is blue-green! This maximum radiation frequency is governed by the sun’s surface temperature, around 5,800K.
How close is Venus to Earth today?
93,458,087 kilometersThe distance of Venus from Earth is currently 93,458,087 kilometers, equivalent to 0.624729 Astronomical Units. Light takes 5 minutes and 11.7426 seconds to travel from Venus and arrive to us.
Why is the Sun a star and not a planet?
The Sun is a yellow dwarf star, a hot ball of glowing gases at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest particles of debris – in its orbit.
Why is Sun called yellow dwarf?
According to their system of classification, the Sun is known as a yellow dwarf star. … Stars in the this classification have a surface temperature between 5,300 and 6,000 K, and fuse hydrogen into helium to generate their light.
What is the most beautiful star?
Betelgeuse StarBetelgeuse Star – one of the most beautiful stars in the night sky.
Can a planet explode?
As far as astronomers know, there is no internal mechanism or other phenomenon that could ever cause a planet to fly apart. Contrary to science fiction, planets are stable and causing one to explode would require some chemical or nuclear process which can provide an explosive punch of energy.
Who invented Earth?
195/194 BC) was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist….EratosthenesBorn276 BC CyreneDied194 BC (around 82) AlexandriaOccupationScholar Librarian Poet InventorKnown forSieve of Eratosthenes Founder of Geography1 more row
Do stars twinkle?
In fact, most of the stars are shining with a steady light. The movement of air (sometimes called turbulence) in the atmosphere of Earth causes the starlight to get slightly bent as it travels from the distant star through the atmosphere down to us on the ground. … To our eyes, this makes the star seem to twinkle.
What is the hottest star in the universe?
Eta CarinaeEta Carinae could be as large as 180 times the radius of the Sun, and its surface temperature is 36,000-40,000 Kelvin. Just for comparison, 40,000 Kelvin is about 72,000 degrees F. So it’s the blue hypergiants, like Eta Carinae, which are probably the hottest stars in the Universe.
Is a planet a star?
A planet is an astronomical body orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.
What is the hottest planet?
VenusVenus is the exception, as its proximity to the Sun and dense atmosphere make it our solar system’s hottest planet. The average temperatures of planets in our solar system are: Mercury – 800°F (430°C) during the day, -290°F (-180°C) at night.
How cold is the moon?
Daytime on one side of the moon lasts about 13 and a half days, followed by 13 and a half nights of darkness. When sunlight hits the moon’s surface, the temperature can reach 260 degrees Fahrenheit (127 degrees Celsius). When the sun goes down, temperatures can dip to minus 280 F (minus 173 C).
What generation star is the sun?
The sun is relatively young, part of a generation of stars known as Population I, which are relatively rich in elements heavier than helium. An older generation of stars is called Population II, and an earlier generation of Population III may have existed, although no members of this generation are known yet.
Is the sun considered a star or a planet?
The Sun is a star. There are lots of stars, but the Sun is the closest one to Earth. It is the center of our solar system.
Why is Venus called Earth’s sister?
Venus is a terrestrial planet and is sometimes called Earth’s “sister planet” because of their similar size, mass, proximity to the Sun, and bulk composition. It is radically different from Earth in other respects.
What is our sun’s star name?
Although it’s a star – and our local star at that – our sun doesn’t have a generally accepted and unique proper name in English. We English speakers always just call it the sun. You sometimes hear English-speakers use the name Sol for our sun.