How big would the sun be if Earth was the size of a marble?
Science & Mathematics If Earth was 1cm diameter (marble size) the sun would have a diameter of 110cm & be 117 meters away.
Does the Andromeda Galaxy have planets?
Does the Andromeda Galaxy have planets? There is currently only one very strong candidate planet in the Andromeda Galaxy, temporarily named PA-99-N2. All the exoplanets (planets outside the Solar System) that have been confirmed as such are located within our own galaxy.
How big would the sun be if the Earth was the size of a pea?
If you mean everything is scaled down by the same factor, then as the Earth (with a diameter of 12000km) has been scaled down to the size of a pea (with diameter 6mm) then the Sun (diameter 1.4 million km) now has a diameter 700mm, or 70cm. This could be roughly the size of a medium sized exercise ball.
How did Hubble measure the distance to the Andromeda Galaxy?
How did Edwin Hubble measure the distance to the Andromeda Galaxy? He applied the period-luminosity relation to Cepheid variables. From the period-luminosity relation for Cepheids, he was able to determine the distance to Andromeda and show that it was far outside the Milky Way Galaxy.
How big would the planets be if the Sun was a basketball?
If the Sun was a basketball (about 23 cm in diameter), then the Earth would be the size of a tiny bead, just over 2 mm wide. Since the average Earth-Sun distance is about 150 million km, this bead would sit about 25 m away from the basketball.
How many suns are there in Andromeda galaxy?
1 trillion
Andromeda Galaxy/Stars
The Andromeda galaxy is the largest in the Local Group, where the Milky Way also belongs. Not only is this galaxy large, but it is also very massive. Its diameter is around 220,000 light-years and its mass equals the mass of 1,230 billion Suns! There are about one trillion stars in the Andromeda Galaxy.
How many planets are in the Andromeda?
A star in the Andromeda galaxy has a “companion” with six times the mass of Jupiter. There’s no end to the ingenuity of these astronomers. We’ve now spotted some 300 extra-solar planets, with rate of discovery increasing at an extraordinary rate.
What is a size if a pea?
Tumor sizes are often measured in millimeters (mm) or centimeters. Common items that can be used to show tumor size in mm include: a sharp pencil point (1 mm), a new crayon point (2 mm), a pencil-top eraser (5 mm), a pea (10 mm), a peanut (20 mm), and a lime (50 mm).
How big is Venus vs Earth?
The planet is nearly as big around as Earth – 7,521 miles (12,104 kilometers) across, versus 7,926 miles (12,756 kilometers) for Earth. From Earth, Venus is the brightest object in the night sky after our own Moon.
How do we know Andromeda is getting closer?
The Andromeda Galaxy (M31) is indeed approaching us, by about 300 kilometers (190 miles) per second measured with respect to the Sun. If you subtract the Sun’s orbital motion around our galaxy (about 230 km per second toward Cygnus), M31 is still approaching the Milky Way by about 130 km per second.
How far away is Andromeda in parsecs?
2.537 million light years
Andromeda Galaxy/Distance to Earth
How far away is the Andromeda Galaxy from the Earth?
Andromeda galaxy from earth The Andromeda Galaxy (IPA: / ænˈdrɒmɪdə /), also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula (see below), is a barred spiral galaxy approximately 2.5 million light-years (770 kiloparsecs) from Earth and the nearest major galaxy to the Milky Way.
How many stars are there in the Andromeda Galaxy?
The Andromeda galaxy has approximately 1 trillion stars and is 2.5 Million light years away. It was named the Andromeda galaxy because it was the brightest “nebula” in the constellation known as Andromeda. There are 16 stars commonly associated with the constellation known as Andromeda that all are in the Milky Way galaxy.
What happens when the Milky Way and Andromeda galaxies collide?
The Milky Way and Andromeda galaxies are expected to collide in around 4-5 billion years, merging to form a giant elliptical galaxy or a large lenticular galaxy.
What is the nearest galaxy outside of our Solar System?
Its not the nearest galaxy outside our own, there are a number of satellite and dwarf galaxies such as Large Magellanic Cloud and the Small Magellanic Cloud to name two. A planet that is outside our own Solar System is known as a Extrasolar Planet (Exoplanet) or Exoplanet.