Dwarf Planets

Sedna was discovered on November 14, 2003.

They are categorized as "dwarf planets" now, leaving only 8 regular planets in our solar system. The names of all the dwarf planets are:
Ceres
Pluto
Haumea
Makemake
Eris

The largest dwarf planet in the solar system is Pluto, and it is also the ninth largest body orbiting the sun directly. Pluto was reclassified as a dwarf planet by the International Astronomical Union in 2006.

It is the most distant object known

A day on Sedna, a trans-Neptunian object in the outer solar system, is not well-defined due to its slow rotation. Sedna's rotational period is estimated to be around 10-12 hours or even longer, but more precise measurements are needed to confirm.

There are 13 in total:

Planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Dwarf planets: Ceres, Pluto, Eris, Makemake, and Haumea.

It seems likely that several other large objects, such as Sedna, Qaoar and others, will eventually be recognized as dwarf planets. It also seems likely that more dwarf planets will be discovered.

Mass of Sedna. = (π/6) * d^3 ρ.

Mass of astronaut m = 700 /9.8 Kg.

Force or weight on Sedan's surface

= G (π/6) * d^3 ρ.*m / d ^2

= G (π/6) * d ρ.* m

--------------------------------------…

G = 6.673 x 10^ -11, d = 1.7e+6, ρ = *2100

--------------------------------------…

F = 8.91 N.

Below Pluto's tenuous atmosphere is its icy surface, composed primarily of frozen nitrogen, methane, and carbon monoxide. This surface is covered in mountains, plains, and vast areas of frozen water ice. The dwarf planet also has a rocky core believed to contain metals and silicate rocks.

Sedna is a trans-Neptunian object, meaning it is located beyond Neptune in the outer region of the Solar System. Its elongated orbit takes it as far as 937 astronomical units (AU) from the Sun at its most distant point.

Ceres takes about 4.6 years to make one trip around the sun.

It is said that it looks similar to Pluto, though being as far away from the Sun as it is, it's atmosphere freezes over and gleams brightly reflecting the sunlight changing its image temporally.

Earth has water, oxygen, and life on it. Mercury is rocky very hot dead planet with no atmosphere. Venus is a dead planet covered with extremely hot poisonous gas with a very thick atmosphere that crushes anything on the surface.

Pluto, the dwarf planet, is the smallest planet in our solar system. In 2006 scientists confirmed that Pluto was a dwarf planet. They confirmed this because Pluto does not have a clear orbit around the sun. The things that a planet must have in order to be a planet is that it MUST have a clear orbit around a star. FUN FACT: Pluto's moon is almost as big as itself! Pluto is the coldest planet in our solar planet. Pluto is an outer planet.

The planets in our solar system orbit around the Sun in elliptical paths. Each planet follows its own unique orbit based on its distance from the Sun and gravitational interactions with other celestial bodies. The orbits are roughly aligned along the same plane known as the ecliptic.

Pluto is a very different planet from all of the planets in our solar system. It is has not been explored yet and it could have many vital materials our resources that Earth is running out of. If Pluto had these resources it would be very great for Earth and the survival for all of mankind!!!Did that answer your question?

This planet likely experiences strong gravitational forces due to its multiple rings and moons. The complex interactions among the rings and moons could lead to unique astronomical phenomena, such as eclipses and ring shadows moving across the planet's surface. The planet's environment may also be dynamic and diverse, providing rich opportunities for scientific study.

Dwarf planets are not asteroids. While both are similar in size and composition, dwarf planets are considered a distinct classification due to their spherical shape and ability to gravitationally clear their orbit of other debris. In contrast, asteroids are irregularly shaped and typically exist in the asteroid belt between Mars and Jupiter.

Dwarfism can be diagnosed by X-rays to show a short stature at a later time in pregnancy. Dwarfism's scientific name is Achondroplasia. Another symptom is the box feet on an infant. The prevalence rate in Dwarfism in about 1 in every 40,000 new born infants every year.

Some possible dangers on the dwarf planet Eris include extremely low temperatures reaching as low as -240°C, the presence of hazardous radiation from cosmic rays due to lack of atmosphere, and potential surface hazards like craters or uneven terrain that could pose risks to spacecraft landing or traversing the surface.

Dwarfism is only expressed when both genes in the persons genome (that determines the trait) are of the dwarf type. Both parents can carry one 'dwarf' gene and one 'normal' gene and express a phenotype of normal. Their children can be either pure normal, half normal, or pure dwarf, with only the pure dwarf expressing the phenotype of dwarf.

The chances of being half normal are 1/2, the chances of being pure (normal or dwarf) are both 1/4.

A metiorite. I believe what you're talking about is a meteoroid, not an asteroid. An asteroid is rather large, revolves around the sun, and when one hits the Earth, and a few have, it is disastrous. A meteoroid, on the other hand, is much smaller and when it hits the Earth's atmosphere and burns up (due to the friction of the atmosphere) it is called a meteor. After it reaches the Earth's surface, it is called a meteorite. http://dictionary.infoplease.com/meteor merci, have a good day.

Eris was discovered in January 2005 by a team of astronomers led by Mike Brown, Chad Trujillo, and David Rabinowitz using images taken by the Palomar Observatory. Eris is considered the largest known dwarf planet in our solar system.

Clinically speaking, there are a whole range of conditions related to dwarfism, each with its own specific pathology and symptoms.

Neither "dwarf" nor "midget" are a clinical medical term - they are common-use terms (medically, one suffers from a form of dwarfism, but is NOT a dwarf). Historically, the term "midget" tended to be used to refer to those short persons who retained anatomical proportionalism - that is, they appeared to be normally proportioned, just shorter. "Dwarf" was often used for those who were short but had disproportionate-sized limbs and head (often, a larger than normal head with smaller than normal proportioned limbs).

Medically, while there is some correlation between absolute height and specific forms of dwarfism, this has little to do with any external feature that lay people would discern. There is no way to make any statement about height differences between midgets and dwarfs, because, scientifically, there is no such thing as either of them. Or, rather, the meaning of midget and dwarf is so inexact that no comparison could possibly be made.

No. Geography is the study of Earth, covering landscapes and environments among others. Astronomy is the study of planets.