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photo contest slideshow
Boarding the Ilyushin 62,
On evening final
Done for the day
Careful when taxing in this environment
Worldwide tails.
Spin training
Departure at sunset.
Helicopter coming to land.
Towplane on final
Landing joy!
This will be a tricky landing said the instructor!
The Elephant's Trunk - An Emission Nebula in Cepheus
Cross country flying ...
Night lights.
The glow of the Iris Nebula
Snow peak.
Sunrise down under.
Eclipsing Moon adjoining a spire of the Air Force Memorial
Lunar Eclipse highlighting the USAF Memorial
Tom Cat
Fueling the avocado warrior.
The Coma Cluster - A slice of a galaxy supercluster
Beginning of the atlantic crossing.

3rd Annual Air & Space Photo Contest
The Elephant's Trunk - An Emission Nebula in Cepheus

While some interstellar dust only reflects the light of nearby stars, we're sometimes treated to a magnificent display when the energy from the nearby stars is sufficient to ionize the surrounding gas, resulting in the emission of light at a small bandwidth in the red spectrum. This light, with a wavelength of 656.28 nm, is indicative of a hydrogen ion falling from its third to its second energy level. Here, the emission of the Elephant's Trunk Nebula is shown in detail largely in part due to its emission of this Hydrogen-Alpha component of the visible spectrum.

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Saint Louis, Missouri, United States of America
Member since 2015
Photo Information
© Frederick Steiling.
All rights reserved.
Image Source: digital
Date Taken: 11.2015
Total Views: 51
Filed Under: Astronomy
Camera Information
Date Uploaded: Nov. 14, 2015, 3:30 p.m.
Camera Make: SBIG
Camera Model: STF-8300M
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PHOTO LOCATION Whiteside, Missouri, United States of America