Test Your Pluto Knowledge!
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| Sorcerer writes:
|
| Magnificent Universe writes:
|
| Suppose Pluto had the same orbit around the Sun as Mars. When closest
to
| Earth, how bright would Pluto be?
|
| A. Pluto would still be so faint that you'd need a telescope to see
it.
|
| B. Pluto would be bright enough to see through binoculars, but not
with the
| naked eye.
|
| C. Pluto would be one of the brightest objects in the sky, outshining
every
| star except the Sun.
|
| Simple: C.
|
| Pluto's absolute magnitude is only 0.7 mag fainter than Mars' absolute
| magnitude, so Pluto would be only 0.7 mag fainter than Mars when in the
| same location in the Solar System. During Mars' perihelic opposition
| three years ago, it reached an apparent magnitude of -2.9, so Pluto
| would be -2.2, brighter than Sirius (about twice as bright).
|
| So?
|
| By the way, the Sun isn't a star: it's a dwarf star. It's the new
| IAU nomenclature; a dwarf something is no longer a something. I
| wonder when the AKC will declare that toy poodles are no longer
| poodles?
|
| When puddles are dorsets, of course. Poole is in Dorset.
|
| Non sequitur.
Of course it is. So are toy poodles and the American Kennel Club, ****wit.
If you wish to have a joke don't whine when it comes back to you.
| I said nothing about puddles, dorsets, or Poole.
Non sequitur.
Androcles.
|