Betelguese getting some attention for dimming
Discussion
Part of the project my son is working on is looking to detect the pulse of neutrinos which a star emits just prior to it going nova - apparently their energy signature is fairly distinct so can be easily distinguished from other sources e.g. someone turning on a nuclear reactor.
The difficult bit is detecting enough of them and interpreting the data before the nova occurs - the recently approved HyperK detector should help with the detection bit as it's a good bit bigger/more sensitive than the SuperK detector my son is working with
The difficult bit is detecting enough of them and interpreting the data before the nova occurs - the recently approved HyperK detector should help with the detection bit as it's a good bit bigger/more sensitive than the SuperK detector my son is working with
MartG said:
Part of the project my son is working on is looking to detect the pulse of neutrinos which a star emits just prior to it going nova - apparently their energy signature is fairly distinct so can be easily distinguished from other sources e.g. someone turning on a nuclear reactor.
The difficult bit is detecting enough of them and interpreting the data before the nova occurs - the recently approved HyperK detector should help with the detection bit as it's a good bit bigger/more sensitive than the SuperK detector my son is working with
Yup - the neutrino burst escapes before the photons [which are trapped to some degree before release - photons travel for 100's of thousands of years within the sun before making it to the surface to give an idea...] and despite being slightly sub-luminal they should still arrive here at least a few hours before we see visible effects.The difficult bit is detecting enough of them and interpreting the data before the nova occurs - the recently approved HyperK detector should help with the detection bit as it's a good bit bigger/more sensitive than the SuperK detector my son is working with
Brilliant projects to be involved in.
Speaking of which, I came across this the other day when mooching through a few searches.
https://nusoft.fnal.gov/nova/public/
Above me at the moment but getting a better grasp of it.
https://nusoft.fnal.gov/nova/public/
Above me at the moment but getting a better grasp of it.
Started cloudless yesterday, then a few fluffy things came in, patchy on my sky last night and the first near clear for ages.
Reading the plot on the aavso.org some are showing 1.5+ magnitude change but the chart is not that simple. There is a "mean" function on it to better see what people are seeing. You can put a date range in back to 1905.
Computer is locked in some sort of issue with a backup at at the moment and turning it very slow and locking up, have to look at that aavso.org later.
OU course starts next week. I will be a world famous expert then. (Thanks Hoofy).
Reading the plot on the aavso.org some are showing 1.5+ magnitude change but the chart is not that simple. There is a "mean" function on it to better see what people are seeing. You can put a date range in back to 1905.
Computer is locked in some sort of issue with a backup at at the moment and turning it very slow and locking up, have to look at that aavso.org later.
OU course starts next week. I will be a world famous expert then. (Thanks Hoofy).
Yep, FOC. I have done a few on the solar system, planets and stuff over the years. Thought I would have more time but keeping finding things to do. Time I made time.
Apple also lists a good few free bits on its web app. Or at least it did before it messed things up. There were links to all sorts of free short courses run by universities world wide, try to find it again.
Apple also lists a good few free bits on its web app. Or at least it did before it messed things up. There were links to all sorts of free short courses run by universities world wide, try to find it again.
Hoofy said:
Eric Mc said:
Hoofy said:
Is it a little on the red side or is it my eyesight going off?
It's a red giant so always appears red.
I never noticed it before.
ISS passing through a bit of sky, slightly enhanced. The blur on the stars are probably atmosphere and lens aberration, this was not from a scope. Blues and reds should be obvious but this is a small file from a larger one.
I don't think that it was any coincidence that the news on Betelguese POSSIBLY going supernova came out just before Christmas. Scientists are media savvy too and any item about a "bright new star at Christmas" is bound to get more air time and coverage than if the report had been published in June.
Possibly, somebody had read Arthur C Clarke's short story, "The Star".
Possibly, somebody had read Arthur C Clarke's short story, "The Star".
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