What is the job of K 2 NASA?
K2 will identify high-value exoplanets for follow-up and characterization, collecting photometric information on tens of thousands of stars in the local neighborhood, and gathering information on stellar clusters, black holes, supernovae, and variable galaxies.
How many planets has Kepler found?
2,600 planets
How do planets interact with their stars?
In general, the interaction between a star and its planets is mediated by gravitation, radiation, magnetic fields , and the stellar wind, which is the flux of charged particles that continually escape from the outer atmosphere of the star.
What is a Goldilocks planet?
A “Goldilocks Planet” is the right distance from its Sun to allow temperatures for liquid water. Not too hot, not too cold. Mars is the right distance from the Sun, but does not have enough atmosphere and gets too cold at night. Water is frozen in polar ice caps.
Why does the star wobble when it has an orbiting planet?
We all know that the chains of gravity shackle a planet to its star. That star’s enormous gravitational influence keeps its planetary family in orbit. But gravity works both ways: as the planets sweep around in their orbits, they tug on their parent stars to and fro, causing those stars to wobble.
Is a star moving?
The stars are not fixed, but are constantly moving. If you factor out the daily arcing motion of the stars across the sky due to the earth’s rotation, you end up with a pattern of stars that seems to never change.
Who created a system to explain how planets and stars move?
Ptolemy (About 100-179 A.D.) In the second century A.D., the Greek astronomer Ptolemy devised a theory for the solar system that was to survive for 14 centuries. Ptolemy’s book, the “Almagest,” contained accurate descriptions of the motions of planets. It was the standard astronomical reference until the Renaissance.
What was the original name of the Earth?
From the Latin terra – with origins in the Proto-Indo-European ters-, meaning “dry” – the Romance languages derived their word for Earth, including the French La Terre, Italian La Terra and Spanish La Tierra.
What is the twin planet of Earth?
Venus