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Amazing clouds created by twilight rocket launches

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posted on Aug, 31 2013 @ 01:53 AM
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Twilight phenomenon is produced when unburned particles of missile or rocket propellant and water left in the vapor trail of a launch vehicle condenses, freezes and then expands in the less dense upper atmosphere. The exhaust plume, which is suspended against a dark sky is then illuminated by reflective high altitude sunlight, which produces a spectacular, colorful effect when seen at ground level. The phenomenon typically occurs with launches that take place either 30 to 60 minutes before sunrise or after sunset when a booster rocket or missile rises out of the darkness and into a sunlit area, relative to an observer’s perspective on the ground.

This phenomenon usually produces a cloud of green, blue, white and rose colored hues which takes on a corkscrew appearance as it is whipped around by wind currents. It is seen within two to three minutes after a launch has occurred. Depending on weather conditions, it could remain in the sky for up to half an hour before dispersing.

Pre-dawn launches are probably less spectacular than their dusk counterparts. During dusk launches, the sunlight shines through the exhaust plume. Pre-dawn launches, on the other hand, produce a more subtle display because the sunlight directly reflects off the plume.

Source, and more pictures: abcstarstuff.tumblr.com...

Here's a video of such a cloud created by a Soyuz rocket lanuch:




posted on Aug, 31 2013 @ 02:11 AM
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i like second picture..looklike way to heaven..nice job mr!

stars and flag for great picture!
edit on 31-8-2013 by cheesy because: (no reason given)



posted on Aug, 31 2013 @ 01:39 PM
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Wow great pictures. This is new to me. Thanks for posting these
..The second one looks amazing!



 
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