Date: 10/04/2017 04:05:08
From: Tau.Neutrino
ID: 1049662
Subject: Lightning on other planets
How could lightning on other planets be different?
colors
intensity
length
duration
?
Date: 10/04/2017 07:13:49
From: mollwollfumble
ID: 1049727
Subject: re: Lightning on other planets
Tau.Neutrino said:
How could lightning on other planets be different?colors
intensity
length
duration
?
Let’s start with location.
Venus – “strikingly similar to Earth’s”
Earth – 100 million volts
Mars – “during a dust storm”
Jupiter – “10 times as powerful as anything ever recorded on Earth”
Saturn – “blue colour … 3 billion watts over one second, on par with some of the strongest lightning flashes on Earth”
Titan – “no lightning in 72 flybys” so either rare or weak.
Uranus – “lightning strikes on Uranus are more powerful than those on Earth, but nowhere near as strong as the magnificent electrical discharges on Saturn … ferociously inundated with lightning storms all of the sudden, the lightning storms are as wide as Earth itself”
Neptune – “presence of radio-frequency whistlers associated with lightning, but too deep in the atmosphere to be seen at visible wavelengths.”
Exoplanet – not directly observed yet, but “exoplanet HD 189733b, a Jupiter-sized world known for its blue colour, should have about 100,000 lightning flashes per hour”
Brown dwarf – not directly observed. “Mineral clouds in substellar atmospheres” could generate 100 times as much lightning as that in a Jupiter-like planet.
Science fiction – Trenco “Not in Terra’s occasional flashes, but in one continuous, blinding glare which makes night as we know it unknown there”.
Lightning storms on Uranus
