Clear Skies- Guy
“The first gulp from the glass of natural sciences will turn you into an atheist, but at the bottom of the glass God is waiting for you.” ― Werner Heisenberg
12" LX200 GPS
4" Unitron 150
4" Bosma refractor
Denk Binotron 27, D14's and D21's
Galaxy Note 8 running SkySafari Pro via Bluetooth
Wireless Autostar II
"Scientists aren't perfect, just peer reviewed.""Eye of Sauron Observatory", featuring "Sauron's Other Eye", 16" dob, conical Royce mirror.
Quote:By most calculations it appears life on Earth would be relatively safe from immediate effects but what about long term effects. What about life cycles of plants and animals that are so in tuned with the night sky and associated lunar phases, etc. Would the additional LP kill off a lot of these species or could evolution prevail in an environment that has chaged so rapidly?
Cactus Patch Observatory / 14" LX200
"The four points of the compass be logic, knowledge, wisdom, and the unknown. Some do bow in that final direction. Others advance upon it. To bow before the one is to lose sight of the three."
Quote:We would get a lot of UV light from it - this would interact with the ozone layer, but not enough to cause any real problems for life. There would not be an aurora - those are caused by charged particles diving into the atmosphere.-drl
Quote:Well, the charged particles travel more slowly than the electromagnetic radiation from the flare, and they're susceptible to magnetic fields. In fact, the aurora is caused by the Earth's magnetic fields deflecting the charged particles from their initial path.Charged particles from Betelgeuse simply wouldn't make it this far, at least not en mass, and not in a human lifetime.
Quote:..one other fact - because Betelgeuse is so close to the equator, the entire world would get to enjoy the show. But let's hope it happens during July!
Quote:And would a Type II SN necessarily be really bluish early on? And if so, for how long? I don't recall SN 1987A being reported as ever bluish. (I did see it from Australia when at peak brightness, and it was a yellowish hue.)
Quote:Quote:..one other fact - because Betelgeuse is so close to the equator, the entire world would get to enjoy the show. But let's hope it happens during July!I hope it doesn't happen at all - I like Orion with two shoulders!
Quote:There would be many extraordinary optical phenomena associated with a nearby SN. Because the light is a point source, diffraction effects would be easy to see. The star would twinkle like mad and cover the ground with weird shifting ghostly patterns corresponding to atmospheric turbulence. When seen through tree leaves, the star would continuously appear and disappear in the gaps instantaneously, creating a strange strobe-like effect that would be utterly hypnotic and weird. Unlike the reflected light from the Moon, this would be extremely shockingly blue-white, unless near the horizon, when a kaleidoscope of colors would appear in rapid random succession. This object would utterly dominate the night sky and landscape with its weird effects. It would be worth losing Betelgeuse to witness such a thing. It would also have a profound effect I think on human appreciation for "out there".-drl