Dr Steve clarifies his question. When looking at objects in space like a planet billions of miles away. It takes light to see that planet. So when looking at that object say 12am on a given day, then what time did I actually see that object due to the delay in light reaching my eye?
When we see an asteroid coming at us, not only is there distance in light years that must be calculated for sight, there is also movement involved and speed too must be calculated. So by the time the object is actually seen by us on Earth, time and distance has changed. How is all this measured and what are we really seeing?
When we see objects in space it is not actually what is happening present due to the speed of light reaching our eye when looking at an object. There is always a delay. We are not seeing what we think we are actually seeing.
Dr. Steve
A "Goldilocks planet" is ANY planet that orbits its star at a distance from that star where the heat from the star means that any water present on the planet is in liquid form. This can be determined by measuring the stars temperature (its size and colour) and observing the planets orbital distance.
The planet Mars.
The temperature of a planet varies with the distance from the sun because the sun is hot and the closer something is to the sun, the hotter the object gets. The further away the planet from the sun, the colder the planet.
The temperature of a planet varies with the distance from the sun because the sun is hot and the closer something is to the sun, the hotter the object gets. The further away the planet from the sun, the colder the planet.
This planet is Mercury, because the orbit is not a circle the distance is variable: between 28,5 million miles and 43,5 million miles.
The distance varies very little so the temperature change is small, probably too small to be measured at present.
yeah that's the planet im from no life is not present on it because it is very hot place
The distance varies very little so the temperature change is small, probably too small to be measured at present.
Pluto is the slowest planet to move around the sun, because of its far distance.
Saturn has a chilly climate because the distance from the sun
There is something missing from the question. The planet must have a moon. The only way to measure the mass of a planet is by using data about a moon orbiting the planet or data about the path of a spacecraft passing or going into orbit around the planet. If you know the distance to a planet then you can work out the moon's distance from the planet. The planet's mass can then be found. It's a bit of trigonometry and Newton's version of Kepler's Third Law. So that's the reason that it is necessary to know the distance to the planet.
It relates because if the planet is closer resieves more light from the sun.