Quote:
Originally Posted by DavidTrap
Do you have any references to support your statements?
DT
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Just observation David. Here is a sequence of 15s, 30s, 60s and 120s 300% crops of these exposure stacks as an animated gif. Watch the dim stars as they 'appear'. 1MB
http://d1355990.i49.quadrahosting.co...0_06/stars.gif
These stars are resolved. When they are not they show up as a faint green background. Light pollution is far more uniform.
Neutral (non ionised) Hydrogen gas does not show up at HA if it is not excited by nearby stars. I was just assuming that the faint unresolved star streams from the LMC would be roughly where the intergalactic Hydrogen is that only show up in radio images. The green regions are real. This is the only explanation I could think of.
Below is the latest map of the neutral H at radio wavelengths.
From here
http://www.sciencedaily.com/releases...0104151921.htm
Bert