05-07-2021, 11:36 PM
I'm not buying the "solid nitrogen" explanation for Oumuamua. If it were solid nitrogen, and considering how closely it approached the sun at perigee, it should have lost a whole lot of mass to sublimation and outgassing. Solid nitrogen can't take much heat before it becomes gaseous nitrogen.
Enough outgassing to account for the observed acceleration should have been highly visible, yet it wasn't. There was no coma visible at any time, as a matter of fact.
The disc shape may be correct. It's a toss up, given the light curves, between a disc shape and a cigar shape. Either one, when tumbling, could account for the observed light curves. The tumbling itself could be a way of producing artificial gravity, increasing towards tehe extremity of the shape, if it were an interstellar craft of some sort, but that would assume occupants - machinery doesn't need gravity to work - and there were no detected radio emissions from it. maybe someone was there, but had no one to talk to, or maybe communications were accomplished through some other means... or maybe it was just an extrasolar rock.
In the case of the Phobos II bogey, maybe that was just a rock, too, but if it was, and given it's size at about 20 km long, why have we not detected it yet?
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Enough outgassing to account for the observed acceleration should have been highly visible, yet it wasn't. There was no coma visible at any time, as a matter of fact.
The disc shape may be correct. It's a toss up, given the light curves, between a disc shape and a cigar shape. Either one, when tumbling, could account for the observed light curves. The tumbling itself could be a way of producing artificial gravity, increasing towards tehe extremity of the shape, if it were an interstellar craft of some sort, but that would assume occupants - machinery doesn't need gravity to work - and there were no detected radio emissions from it. maybe someone was there, but had no one to talk to, or maybe communications were accomplished through some other means... or maybe it was just an extrasolar rock.
In the case of the Phobos II bogey, maybe that was just a rock, too, but if it was, and given it's size at about 20 km long, why have we not detected it yet?
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Diogenes was eating bread and lentils for supper. He was seen by the philosopher Aristippus, who lived comfortably by flattering the king.
Said Aristippus, ‘If you would learn to be subservient to the king you would not have to live on lentils.’ Said Diogenes, ‘Learn to live on lentils and you will not have to be subservient to the king.’
Said Aristippus, ‘If you would learn to be subservient to the king you would not have to live on lentils.’ Said Diogenes, ‘Learn to live on lentils and you will not have to be subservient to the king.’