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New Dwarf Planet Discovered In Outer Solar System (seeker.com)
astroengine quotes a report from Seeker: Astronomers have found another Pluto-like dwarf planet located about 20 times farther away from the sun than Neptune. The small planet, dubbed 2015 RR245, is estimated to be about 435 miles in diameter and flying in an elliptical, 700-year orbit around the sun. At closest approach, RR245 will be about 3.1 billion miles from the sun, a milestone it is expected to next reach in 2096. At its most distant point, the icy world is located about 7.5 billion miles away. It was found by a joint team of astronomers using the Canada-France-Hawaii Telescope (CFHT) on Maunakea, Hawaii, in images taken in September 2015 and analyzed in February. The discovery was announced on Monday in the Minor Planet Electronic Circular.
THis could possibly be Nibiru, finally. Hoagland vindicated.
What's a mile?
It's a unit of length equal to 17.6 football fields.
What's a mile?
It's the distance light travels in roughly 1/186282 seconds.
#DeleteChrome
it's a unit of length approximately equal to 1.609E+13 angstroms.
Political debates have me rolling my eyes so much I think I got optical whiplash. I should sue. - Foamy The Squirrel
More details (with animated gif) here: http://cfht.hawaii.edu/en/news...
(include measurements in SI units)
Miles - latin :D )
From "Mille" thousand
and the "s" is probably from "steps" (har har har
So it means 1000 steps (which is actually half right but wrong).
It actually means 1000 paces (and a pace originally is a double step, now more or less synonymous to a step)
So, as the english have short legs the old english mile is shorter than the current american one, but I believe meanwhile both have the same length. Probably because either the irish or welsh have short legs, or the americans grew long legs to run from the british?
Than we have nautical miles, used in aviation and sea fare. Would make sense to use it in astronomy, too. Don't you think so? A nautical mile is significantly longer than a "paces mile". Probably because you can not walk over water or in thin air ... who knows?
On the other hand: in news like this I had preferred a distance given in AU or Light seconds/minutes, too.
A orbit varying between 3.x billion miles and 7.y billion miles or 4.5 billion km and 13 billion km says me: hm .... must be far.
Cost free eBook I read (by iBook/Kobo/Amazon/ObookO/Gutenberg etc.): "The Green Odyssey" by Philip Jose Farmer.
Nautical miles are a lot easier once you get your sea legs.
What's a mile?
It's a river in mortherm Africa, the lomgest im the world. It crosses mamy coumtries amd emds im a big delta mear Cairo.
My site
located about 20 times farther away from the sun than Neptune
It's perihelion is only 34 AU, aphelion 120 AU. Ie, it's between 1.13 and 4 times as far as Neptune.
The creatures outside looked from Alt-Right to Antifa; but already it was impossible to say which was which.
On space.com they provide the measurement in kilometer alongside mile
The exact size of 2015 RR245 is not yet known, but the researchers think it's about 435 miles (700 kilometers) wide. Pluto is the largest resident of the Kuiper Belt, with a diameter of 1,474 miles (2,371 km).
Therefore, this is most likely an international mile. However, who cares? They also provided the diameter in a present day standard for length.
Than we have nautical miles, used in aviation and sea fare. Would make sense to use it in astronomy, too. Don't you think so? A nautical mile is significantly longer than a "paces mile". Probably because you can not walk over water or in thin air ... who knows?
A nautical mile is one arc-minute of latitude. There are 60 nautical miles in one degree of latitude.
This makes calculations of track lengths and therefore positions on a global scale *much* easier, which is why the unit was invented.
It is not the age, which makes the mile odd, it is the fact that everyone else uses the metric system, but not the US and two other countries. It is an idiosyncrasy.
Agreed. I'm working with an engineer from the US on a project and the difference is a constant headache for us. It's not just about calculations, it's also about intuitive understandings (if I say a beam that's 40x80mm, or he says one that's 3"x3", it's important that the other get an immediate sense of what exactly that means). It's about knowledge of the market, whether elements in particular dimensions are actually available. It's about the ability to double check other people's calculations just by looking at them, without having to run everything through a bunch of conversions. It's about the need to constantly insert conversions into everything you write just to make sure that the other person is on the same page. And yes, it's about mistakes. I wasted a lot of time on an approach that depended on M10 screws when the other person had intended #10 screws... my fault on that one, but still, it's frustrating that this difference in measures and standards exists.
We also have a halon fire extinguisher. Its always nice to have a fire extinguisher that kills people around.
It is not the age, which makes the mile odd, it is the fact that everyone else uses the metric system, but not the US and two other countries.
Actually the US, Myanmar, Canada, India, and several others still use imperial units for certain things. If you ask someone in Canada how much they weigh, they'll tell you in lbs. The speed limit signs in the UK are still in MPH. Gas/petrol is still sold by the gallon in several countries.
Ceres is almost twice that size, *almost* the size of our Moon.
Meanwhile, for many decades, the books for kids and teens always said that the Earth and Moon could be considered a double-planet system.
Pluto is almost half again the size of our Moon.
"Equal rights for Pluto! Pluto is a planet!" - young Plutonian alien in Worldcon masquerade, 2008
I do astronomy as a hobby and am very familiar with large numbers, math and all things sciency and it's still still all abstract to me. The only other reasonable comparison is how many times further Pluto is than Neptune (and I don't know). Unless you are an astronomer, what would a Earth or Pluto distance reference do for you exactly other than trying to impress people. And if this is all that you're going for, just make up numbers. No one is going to check or even remember what you said. Pluto is 112,765,532,001,875,993 times as far from me right now as the grocery store. There, now you still know nothing but can look smarter to people who are impressed by such things.