Infrared Aurora on Uranus
- Graeme1858
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Infrared Aurora on Uranus
The presence of an infrared aurora on the cold, outer planet of Uranus has been confirmed for the first time by University of Leicester astronomers.
https://le.ac.uk/news/2023/october/uranus-aurora
Graeme
https://le.ac.uk/news/2023/october/uranus-aurora
Graeme
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Celestron 9.25 f10 SCT, f6.3FR, CGX mount.
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APM 11x70 ED APO Binoculars.
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- hosshead
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Re: Infrared Aurora on Uranus
you post some of the COOLEST stuff!
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Scopes; Tiny little Mak-Cass Celestron c90 spotter scope that lets me count the moons of Jupiter and with which I can see Saturns rings in Mickey Mouse phase
Old Meade 1000mm f/11 that was missing the finder scope and ring so I rigged one onto the barrel using duct tape and a bit of cardboard and that actually works and I can count the moons of Jupiter with this one too.
Meade 6" reflector,(really elderly), found at a yard sale, the tube is a bucket of rust and corroded mirror but the mount and tripod will be recoverable so hooray for that.
Cameras; Mamiya medium format 645 with a couple of polaroid backs and a series of wide angle to 50mm lenses
Konica-Minolta 35mm,Sony alpha dslr's, up to the a900 full frame, mostly got them used because I don't have much money.
- StarHugger
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Re: Infrared Aurora on Uranus
Thats an awesome pic too...
Thanks!
Thanks!
Aaron / thestarhugger@gmail.com / Solar Kitchen Observatory / USA...
Solar Imaging Sessions 48, Solar Observing Sessions 197
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Re: Infrared Aurora on Uranus
The aurora are interesting on their own - the connection to life on other planets is a quite a stretch.
Uranus is still the coldest of all of the solar-system planets.
Under the cloud deck it's still only 100K.
If you're looking for a warm climate on Uranus, you'll find it at 300 atmospheres pressure. There are no aurora down in the bowels of Uranus.
Life doesn't just need heat, it needs energy. Two different things. The solar radiation flux at Uranus is 0.3% of the energy Earth receives. When you read things like "the core of Uranus produces more heat than it receives from the sun" that's because it's producing a paltry amount of heat compared to an even more paltry irradiance. Then this third heat source, aurora, can have a comparable effect on the energy situation.
Certainly, if you bring a planet like Uranus closer to the Sun (which must be what they're thinking about in terms of exoplanets) then it's not aurora that provide the source of heat - it's the star. By many orders of magnitude.
{PS . this post was written purely for the sake of making that pun. I'm not normally so pedantic, I promise.}
Uranus is still the coldest of all of the solar-system planets.
Under the cloud deck it's still only 100K.
If you're looking for a warm climate on Uranus, you'll find it at 300 atmospheres pressure. There are no aurora down in the bowels of Uranus.
Life doesn't just need heat, it needs energy. Two different things. The solar radiation flux at Uranus is 0.3% of the energy Earth receives. When you read things like "the core of Uranus produces more heat than it receives from the sun" that's because it's producing a paltry amount of heat compared to an even more paltry irradiance. Then this third heat source, aurora, can have a comparable effect on the energy situation.
Certainly, if you bring a planet like Uranus closer to the Sun (which must be what they're thinking about in terms of exoplanets) then it's not aurora that provide the source of heat - it's the star. By many orders of magnitude.
{
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- Michael131313
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Re: Infrared Aurora on Uranus
Thanks for the post. Interesting, geomagnetic reversal everyday. Amazing.
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- Lady Fraktor
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Re: Infrared Aurora on Uranus
I think (dangerous I know) that the only planets they have not confirmed aurora on are Mercury, Venus and Pluto?
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See Far Sticks: Elita 103/1575, AOM FLT 105/1000, Bresser 127/1200 BV, Nočný stopár 152/1200, Vyrobené doma 70/700, Stellarvue NHNG DX 80/552, TAL RS 100/1000, Vixen SD115s/885
EQ: TAL MT-1, Vixen SXP, SXP2, AXJ, AXD
Az/Alt: AYO Digi II, Stellarvue M2C, Argo Navis encoders on both
Tripods: Berlebach Planet (2), Uni 28 Astro, Report 372, TAL factory maple, Vixen ASG-CB90, Vixen AXD-TR102
Diagonals: Astro-Physics, Baader Amici, Baader Herschel, iStar Blue, Stellarvue DX, Tak prism, TAL, Vixen
Eyepieces: Antares to Zeiss (1011110)
The only culture I have is from yogurt
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