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Questions tagged [kuiper-belt]

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7
votes
1answer
262 views

Evidence of Water D/H Ratios of Kuiper Belt Comets

I was wondering, are the comets 67P/Churyumov-Gerasimenko and 103P/Hartley 2 the only Kuiper Belt comets to date that have their water D/H (deuterium-to-hydrogen) ratio measured?
6
votes
1answer
118 views

Could a Kuiper Belt object fly by probe measure star distances by parallax better than Gaia?

Could a New Horizons class probe aimed to fly by a Kuiper Belt object 100 AU from the Sun use its camera, built to image the Kuiper Belt object, to also measure distances to stars (and distant Solar ...
3
votes
1answer
187 views

What did New Horizons photograph that was close enough to be out of focus?

The picture below shows a Kuiper Belt object and a number of stars. It was recently taken by the New Horizons probe and published by NASA. The arrow points at the KBO and the rest of the bright ...
10
votes
2answers
352 views

How close to 2014 MU₆₉ can New Horizons get?

New Horizons is en-route to 2014 MU₆₉, where it is planned to fly by 1 January 2019. Considering fuel and other considerations, how close to 2014 MU₆₉ can it get? (At the time of writing, October ...
1
vote
2answers
1k views

What is different about the orbits of Pluto and the comets around the Sun? [closed]

What is different about the orbits of Pluto and the comets around the Sun?
38
votes
4answers
5k views

If there's nothing special about Pluto, why was it discovered so early?

Pluto was recently re-classified, losing its official status as the ninth planet, because a bunch of other dwarf planets were found in its orbital region that were too numerous and insignificant to ...
10
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2answers
803 views

Will New Horizons seek a third target?

New Horizons will fly past the Kuiper Belt object 2014 MU69 in January 2019. This will use 56 m/s of the remaining ∆V budget of 130 m/s (1). The encounter will occur near the inner edge of the belt: ...