Dwarf Planet Pluto

Dr. Tyson's interview is not well-organized, while his preface is clearly organized so the reader can easily understand it.

It's because Pluto is so far away that the space shuttle NASA sent out to take close up pictures, still isn't there and it's still got a long way to go (probubly neer Saturn by now).

The International Astronomical Union changed the classification of Pluto in August of 2006. They downgraded it from a planet to a dwarf planet.

Pluto does not meet the criteria set by the International Astronomical Union to be classified as a planet. It has not cleared its orbit of other debris, a key requirement for planethood. Instead, it is now considered a dwarf planet.

Both Pluto and Jupiter are planets in our solar system. They are both part of the outer planets, with Jupiter being the largest planet and Pluto being the smallest. They also have multiple moons orbiting around them.

No, no spaceship has landed on Pluto. The only spacecraft to have visited Pluto is NASA's New Horizons probe, which flew by the dwarf planet in July 2015 and conducted a close flyby to gather data and images.

All of the following bodies orbit the sun:


-- All of the planets on our solar system, including the earth
-- All the natural satellites of all the planets, including earth's moon
-- The body of every human being, alive or dead, ever born on earth
-- All of the asteroids
-- All of the members of periodic meteor showers
-- All of the periodic comets
-- All of the bodies in the Oort cloud
-- All of the artificial satellites ever constructed on earth,
(whether or not they successfully achieved earth orbit, or were even launched)
-- All but a couple of the space probes ever constructed on earth and launched into space
-- All of the auxiliary hardware, third-stage rocket motors, etc. ever used to launch satellites and space probes

At present, pluto has been and still is recommended as a dwarf planet. now i should introduce you to the definition of dwarf planet:a dwarf planet is something that doesn"t exist as a planet in the space.It"s something other than a planet

No. First of all, Pluto is a dwarf planet, not a moon. Second, Pluto is actually smaller than seven of the moons in this solar system.

Saturn is a gas giant, there is no solid surface.

Neptune and Pluto have different orbits. Neptune is sometimes further away than Pluto. If you read recent debates, the planet Pluto may have a different identification other than planet.

Nowadays Pluto is classed as a minor planet and isn't included as one of the eight major planets. In the past, when Pluto was included it could have been classed as either the 8th or 9th planet because the orbits of Pluto and Neptune vary so that at some points Pluto is nearer to the Sun than Neptune and vice versa.

no it's a dwarf planet

I would think that it is a dwarf planet, but its moon, Sharon, is nearly as big as it, so some MAY argue that Sharon is a dwarf planet and Pluto is the moon, but considering Pluto is slightly bigger than Sharon, I would think that Sharon would orbit Pluto rather than Pluto orbiting Sharon.

Pluto has orbited close to Earth and the sun during the late 20th and early 21st centuries. While Pluto is this close to the sun, some nitrogen with small amounts of carbon monoxide and methane that were frozen on its surface have warmed enough to become gaseous, forming a thin atmosphere. Much of Pluto's atmosphere is expected to freeze and collapse once again as it moves away from the sun over the next 10 to 15 years. The complete orbit of Pluto takes almost 250 years, and during most of this time the atmosphere is thought to be almost non-existant. Wikipedia has some additional information and a link is provided.

In 2006, pluto's classification was changed to "dwarf planet". This removed it as one of the nine planets in our solar system. It was done so by the IAU (international astronomical union). The main reason for this is due to the orbital path of Pluto as it crosses Neptune's and thus does not fit the IAU's definition of a "planet".

Clyde discovered Pluto with a device called a "blink comparator." In its time, it was top-of-the-line technology, circa 1930.

Full-sky or All-sky surveys were taken from time to time on old-fashioned photographic plates back in the day. Most stars move imperceptibly over several human lifetimes, because they are so far away; but planets, they are much closer to Earth. Even distant Pluto moved enough to be captured by 1930's technology.

The blink comparator focused the image of two different photo plates taken at different times, but of the same region of the sky, rapidly back and forth. Any planet, or "wandering star" from the Greek language, would manifest itself as movement in the rapidly changing views of the comparator. Easy enough for a human to detect.

Especially one so talented as Clyde Tombaugh. And that is how he found it.

None. Moons orbit Neptune. Planets orbit the Sun

The closest Pluto gets to the Sun is 4.4 billion kilometers, which means that light from the Sun always takes longer than 4 hours to reach Pluto. For a rocket vehicle travelling at the speed that astronauts went to our Moon (less than 40,000 km/hr), it would take over 12 years to reach Pluto!

i reallt know what the answer is but i wish i knew and my mood is geeky.

There's only one probe. That's "New Horizons" and it doesn't get to Pluto until year 2015. It was launched in 2006.

Now we come to the last planet in our Solar System, Pluto. The temperature of the planet is a frosty minus 233 degrees Celcius. The seasons on Pluto are quite long. A summer on the planet occurs when the planet is at its nearest to the sun and lasts about 50 years. This is also the only time when the planet's frozen surface of methane and nitrogen vaporize by the small amount of heat from the Sun to create somewhat of an atmosphere. By 2020, the atmospheric gases of Pluto will once again be frozen to the surface of the planet as it makes its way away from the Sun and will stay that way for more than a century. The long slugish seasons of the planet are due to Pluto’s 248 year orbit. For 20 years of Pluto’s orbit, the planet is actually the eighth planet from the Sun as it passes by Neptune’s orbit. Right now Pluto is ranked the eighth planet, but will only be there for a short time because in 1999 Neptune will regain its rank. Although Pluto may look like it passes through Neptunes path, it is actually millions of kilometers away.

Pluto is so lonely because its is the last planet in the solar system and it is so small. Also technically, Pluto is not really considered a planet anymore. So Pluto's so lonely because of all those reasons.