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This blog is all about our celestial neighborhood.
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Pluto’s Not A Planet Anymore

by Jeff Mondak and Alex Stangl

Since 1930, quite a run
It always was the smallest one,
And oh so distant from the sun
But Pluto’s not a planet anymore

Astronomers who had a look
Said “go re-write your science book”
They gave it the celestial hook
Now Pluto’s not a planet anymore

Listen James and Janet
Some experts said to can it
Now Pluto’s not a planet
No, Pluto’s not a planet anymore

Uranus may be famous
But Mercury’s feeling hot
For Pluto was a planet,
And somehow now it’s not

Neptune’s nervous, Saturn’s sad,
And jumpin’ Jupiter is hoppin’ mad
Eight remain of nine we had
Pluto’s not a planet anymore

They held the meeting here on Earth
Mars and Venus proved their worth
But puny Pluto lacked the girth
So Pluto’s not a planet anymore

Listen James and Janet
Some experts said to can it
Now Pluto’s not a planet
No, Pluto’s not a planet anymore

They met in Prague and voted
Now Pluto’s been demoted
Oh, Pluto’s not a planet anymore

Pluto Gets 14 New Neighbors

Dwarf planet Pluto with one of it’s moon, Charon.Charon’s relative large size to Pluto has some astronomers calling the Pluto-Charon a dwarf double-planet. Our Earth-Moon system is sometimes referred to by the same term (minus the “dwarf” distinction). Another thing that Pluto-Charon has in common with our system is they too are both tidally locked to one another: Charon always presents the same side to Pluto, and vice-versa.

Dwarf planet Pluto with one of it’s moon, Charon.

Charon’s relative large size to Pluto has some astronomers calling the Pluto-Charon a dwarf double-planet. Our Earth-Moon system is sometimes referred to by the same term (minus the “dwarf” distinction). Another thing that Pluto-Charon has in common with our system is they too are both tidally locked to one another: Charon always presents the same side to Pluto, and vice-versa.

mohandasgandhi: mohandasgandhi: Because you’re not a real planet, bro.  You’re just a little dwarf planet in the Kuiper belt.  You may blame Quaoar, Sedna, and Eris - not us. The IAU states, “A planet is a celestial body that (a) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (b) is in orbit around a star, and is neither a star nor a satellite of a planet.”  You have FAILED, Pluto!  Pluto! Don’t feel bad, you are awesome. You are equally as cool as the 8 planets, you just are a dwarf planet. Just a label. Science prevails bud. Keep your head up.

mohandasgandhi:

mohandasgandhi:

Because you’re not a real planet, bro.  You’re just a little dwarf planet in the Kuiper belt.  You may blame Quaoar, Sedna, and Eris - not us. The IAU states, “A planet is a celestial body that (a) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (b) is in orbit around a star, and is neither a star nor a satellite of a planet.”  You have FAILED, Pluto! 

Pluto! Don’t feel bad, you are awesome. You are equally as cool as the 8 planets, you just are a dwarf planet. Just a label. Science prevails bud. Keep your head up.

-iwilldestroyyou: chromatichouse: NASA’s Hubble Discovers Another Moon Around Pluto “This is a fantastic discovery,” said principal investigator Alan Stern of the Southwest Research Institute in Boulder, Colo. “Now that we know there’s another moon in the Pluto system, we can plan close-up observations of it during our flyby.” (New Horizons mission 2015)

-iwilldestroyyou:

chromatichouse:

NASA’s Hubble Discovers Another Moon Around Pluto

“This is a fantastic discovery,” said principal investigator Alan Stern of the Southwest Research Institute in Boulder, Colo. “Now that we know there’s another moon in the Pluto system, we can plan close-up observations of it during our flyby.” (New Horizons mission 2015)

(via Pluto’s “Twin” Has Frozen Atmosphere)Click photo to read up on the latest info on dwarf planet Eris.

(via Pluto’s “Twin” Has Frozen Atmosphere)

Click photo to read up on the latest info on dwarf planet Eris.

Hubble Telescope Reveals - Pluto Has a Fifth Moon!  Discovery years for Pluto’s moons:Charon - 1978Nix - 1995Hydra - 1995P4 - 2011P5 - 2012

Hubble Telescope Reveals - Pluto Has a Fifth Moon! 

Discovery years for Pluto’s moons:

Charon - 1978
Nix - 1995
Hydra - 1995
P4 - 2011
P5 - 2012

discoverynews: Not a Dwarf: Is Pluto a Binary Planet? Last week the infamous “un-planet” Pluto grabbed science headlines with the report of yet anther moon whirling around it. The Hubble Space Telescope discovery brings the tally of icy moons orbiting Pluto to five. Or is it really four? Ray Villard with more on Pluto

discoverynews:

Not a Dwarf: Is Pluto a Binary Planet?

Last week the infamous “un-planet” Pluto grabbed science headlines with the report of yet anther moon whirling around it.

The Hubble Space Telescope discovery brings the tally of icy moons orbiting Pluto to five.

Or is it really four?

Ray Villard with more on Pluto