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- Green: Green is the most common colour seen from the ground and is produced when charged particles collide with oxygen molecules at altitudes of 100 to 300 km. Pink and dark red: Occasionally, the lower edge of an aurora will have a pink or dark red fringe, which is produced by nitrogen molecules at altitudes of around 100 km.
www.asc-csa.gc.ca/eng/astronomy/northern-lights/colours-of-northern-lights.asp
People also ask
What are the Northern Lights & how do you see them?
What colors are visible at the top of the Aurora?
How do I find out if the aurora borealis is visible?
What determines the colours of the Northern Lights?
How do you know if an aurora is blue or green?
Where are the Northern Lights located?
Check the aurora forecast to find out whether the northern lights will be visible in the sky near you. Visit Space Weather Canada for Canada's forecast of geomagnetic activity, which is responsible for the aurora borealis. Check the local weather forecast before leaving.
- Photograph The Aurora
Equipment required. To photograph the northern lights, you...
- The Colours of The Northern Lights
The colours of the northern lights are determined by a...
- Photograph The Aurora
The colours of the northern lights are determined by a number of factors: the composition of gases in Earth's atmosphere. the altitude where the aurora occurs. the density of the atmosphere. the level of energy involved.
- How The Aurora Works
- Colors of The Aurora
- Black Aurora
- Colors Not Due to The Aurora
- Aurora Colors on Other Planets
- References
In order to understand why there are different colors, let’s review the basic process behind the aurora. 1. Charged particles in the solar wind strike the ionosphere or thermosphere layer of the Earth’s atmosphere, which contains low density gases, including nitrogen (N2) and atomic oxygen (O), along with small amounts of hydrogen, helium, and othe...
The ionosphere mainly contains nitrogen and oxygen, so these are the key players in producing the colors of the aurora. While they only release a few colors, sometimes you see a whole rainbow of hues because of the way the different wavelengths of light mix. Moving from the highest altitude in the atmosphere to the lowest, here are the sources of t...
In addition to colorful light bands, sometimes an aurora has black bands that block starlight. The dark regions likely come from electric fields in the upper atmosphere that block electrons from interacting with gases.
Colored lights in the sky sometimes have sources other than an aurora. 1. Sunrise or Sunset: Sunrise or sunset colors sometimes change the apparent color of the aurora. 2. Moonlight: Moonlight also affects the colors seen in the sky at night. 3. Light domes: Cities, fires, and other bright sources of light illuminate the sky. 4. Airglow: Like the a...
Other planets and even moons experience the aurora. For example, images show aurora in the atmospheres of Venus, Mars, Jupiter, Saturn, Jupiter’s moon Io, Uranus, and Neptune. Comets also display auroras. The color of the aurora on other worlds depends on the composition of the atmosphere. Jupiter’s aurora is electric blue, while the Cassini spacec...
Burch, J. L. (1987). Akasofu S-I and Y Kamide (ed.). The Solar Wind and the Earth. D. Reidel. ISBN 978-90-277-2471-7.Helling, Christiane; Rimmer, Paul B. (2019). “Lightning and charge processes in brown dwarf and exoplanet atmospheres”. Philosophical Transactions of the Royal Society A: Mathematical, Physical and...Nishimura, Y.; Gallardo‐Lacourt, B.; et al. (2019). “Magnetospheric signatures of STEVE: Implication for the magnetospheric energy source and inter‐hemispheric conjugacy”. Geophysical Research Lett...Reiff, P. H.; Collin, H. L.; et al.(1988). “Determination of auroral electrostatic potentials using high- and low-altitude particle distributions”. Journal of Geophysical Research. 93 (A7): 7441. d...Jun 23, 2023 · Here we learn what causes the different colors in the aurora borealis (northern lights) and the aurora australis (southern lights).
Feb 20, 2024 · The northern lights, also called the aurora borealis, is the name given to the colorful, celestial light displays famous across the northern latitudes. They are most commonly seen in Northern...
Jul 15, 2006 · If you can see any color, the aurora is at least IBC 2. When it's hard to see bright stars through an aurora, it's IBC 3 or brighter. These terms will help you recognize, describe, and understand what you see. Every solar cycle offers numerous opportunities to see fine displays of the northern (and southern) lights for some time to come.
Topics. What are the northern lights? Information about auroras and the role of the Sun in their formation. The colours of the northern lights. Factors that determine the different colours of the aurora. AuroraMAX observatory. Online observatory to watch Canada's northern lights in high definition. Aurora viewing tips.
