Tiny planet spotted, 3x as distant as Pluto


#1

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#2

The first images look interesting:


#3

I’m not usually pedantic about this sort of thing, but a “planet”? Not so much. 500km is about the same size as the asteroid Ceres. Still very cool.


#4

True. Big pieces of space debris are why they carved out the category ‘dwarf planet’. Current guesstimate puts the total number of dwarf planets in the Kuiper Belt at 200, a 1000 including the Ort cloud. Try memorizing all of those.


#5

Another Kuiper object? Wonder what name they would give this one.


#6

Apparently, Rob isn’t excited by the name “V774104”.


#7

I’ve never heard of the Subaru telescope, and I’m surprised, after a little wiki-ing, it seems to have no connection to the auto maker, except they both like the Pleiades.


#8

And much less massive? They should really call these things “comets.”


#9

Here’s a Hubble close-up of the planet:


#10

It must be very accurate to not only see the planet, but to see that it is spotted as well.


#11

I think Rob’s “Tiny Planet” was a joke on the actual nomenclature, Dwarf Planet.

Ceres is also a Dwarf Planet, not an asteroid.

These two, and the hundreds of other Dwarf Planets, while tiny, are still massive enough to form themselves into a sphere under their own gravity.


#12

Sedna, another dwarf planet, is currently about 2 x as fas away from the sun as Pluto is. However, it has a very eccentric orbit. At its furthest, if may be 15 x as far from the sun as Pluto. V774104 may behave similarly, but there isn’t much know about its orbit quite yet.


#13

Yuggoth?


#14

Since Voyager is apparently only 4x (this body, at 3x, is 3/4 as far as Voyager) as far out as Pluto, what does this say about the size of the solar system?


#15

that space is big?

The current theories about the Oort cloud of the solar system predict a sun/cloud edge distance of 100000 AU.


#16

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