Planetary Science

The average distance from the Sun to Earth is about 93 million miles (150 million kilometers), and this distance remains relatively constant over time due to Earth's slightly elliptical orbit. So, the distance between the Sun and Earth would be roughly the same in the years 1100 and 2012. Any perceived variations would be due to normal fluctuations in Earth's orbit rather than any significant long-term change.

Yes, you are. All of the pollution in the world is killing everything. Global warming is melting the glaciers in the Antarctica and will eventually flood the earth, killing everything in its path... So, basically, you are damaging the planet.

Very nice one......

1. The astronomers predict the distance between us and star.

2. The astronomers predict the age of star.

3. By noticing the intencity of light they predict the star is going away or coming near.

They are very small compared to outer planets, mostly made up of rocks, closer to the sun and they do not have rings.

well u see comets could be bigger than others but also small ones burn up in the atmosphere making themm nothing like so: muduim comet + atmmospher = small comet big comet + atmosphere = medium comet oh SHlT is that god!? comet + atmosphere = big comet and super duper craz------- well u get the idea

Sunspots can last for days to weeks, with an average lifetime of about two weeks. As the sunspot fades, its magnetic field weakens and it eventually becomes indistinguishable from the surrounding surface of the Sun.

The shape that defines the orbit of planets around the sun is an ellipse. An ellipse is a closed curve in which the sum of the distances from any point on the curve to two fixed points (foci) is constant.

If Earth's axis were perpendicular to its orbital plane (i.e., the axis of rotation were upright), there would be no change in the Earth's relationship with the Sun. However, this change would eliminate the seasons as we know them, leading to more consistent temperatures around the world. Climate patterns and biodiversity could also be greatly affected as a result.

Pluto, which is now considered a dwarf planet, has never "blasted." It is located in the outer region of our solar system, beyond Neptune, and remains relatively stable in its orbit.

Pluto

Thanks for the answer! Unfortunately I meant to restrict the question to the 5 planets visible with the unaided-eye. Mercury, Venus, Mar, Jupiter & Saturn (excluding Earth). My mistake. Then again, perhaps its the planet furthest from the sun would have the greatest deviance from a perfect circular orbit. In that case, of the classical 5, it might be Saturn.

The umbra is the portion of a shadow from within which none of the light source is visible.

The penumbra is the portion of a shadow from within which part but not all of the light source is visible.

______________________________

"Umbra" is the area of total shadow, while "penumbra" is the area of partial shadow.

Gas planets are those planets which are not made up of rocks or materials. They are composed of gases only. Eg- Jupiter

Mercury, Venus, Terra (Earth), and Mars. Yes, there are 4 inner planets. These are called the "Terran" planets.

The range of orbit inclinations for artificial satellites can vary from 0 degrees (equatorial orbit) to 90 degrees (polar orbit). The inclination determines how tilted the satellite's orbital plane is relative to the Earth's equatorial plane. Different types of orbits have specific inclination ranges based on their intended purpose and requirements.

One star that lies approximately 2000 light years from Earth is the star Eta Carinae in the Carina constellation. Eta Carinae is a massive and luminous star, known for its variability and potential to become a supernova in the future.

This phrase means that it is easy to waste or lose something valuable that took a long time to accumulate or achieve. It emphasizes the importance of being mindful and cautious with important things or achievements to prevent them from being lost quickly.

So far, Earth is the only planet known to harbor life, much less intelligent varieties of it.

Planets follow elliptical orbits, it would be extremely unlikely for any natural orbit to be perfectly circular. Though the orbits of some of our solar system's planets, shrunk down to fit on a standard book page, would appear to be nearly circular.

A full rotation of Earth is considered one day if only the planet is observed, therefore the Earth will rotate 360 degrees in a day. If the rotation of the Earth is taken into account with the orbit around the sun, the Earth will rotate just under 361 degrees per day.

Johannes Kepler gathered the data that showed the planets travel in elliptical paths around the sun. He formulated his laws of planetary motion based on observations made by Tycho Brahe.

To answer the question very literally: Yes. The Galilean satellites follow the same

pattern of density versus increasing distance from Jupiter that the planets' density

follows versus distance from the sun.

The specific pattern is: No pattern at all.

Earth ... 3rd from the sun ... is the most dense planet, while Saturn ... 6th planet

from the sun ... is the least dense. So there is no "just as" to compare to.

A planet:

1) Orbits the Sun or some other star

2) Gravity has to shape it into a sphere &

3) Have an orbit that does NOT link up to another planet's orbit

A dwarf planet is classified if it does not have one of these 3 things. Reason 3 (like most other dwarf planets in our Solar System) is what makes Pluto a dwarf planet (since some of it's orbit links up to Neptune's orbit)

Mercury is the planet closest to the sun.

Red Super Giants have already passed their main sequence stage and are on the way to death. Luminosity also depends on how close the star is to us. But for arguments sake we will say that they are all the same distance away.

The brightest would be a Yellow Main sequence. Next would be a Red Super Giant, the faintest of all is the white dwarf this is the remaining core of a Red Giant Star, Not Super Giant, that has died. It is very dense, very faint about the size of Earth