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Uranus

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About this observation
Observer
Tony Rodda
Time of observation
21/12/2016 - 14:16
Object
Uranus
Observing location
Newcastle
Equipment
C925
ALPY600
Atik460EX
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Uranus presented itself as a bright target of opportunity whilst I was chasing other objects.

A good id on atmospheric gases and hydrogen lines.

Fully processed in Demetra and presented/labelled in BASS.

Comments

Derek Robson's picture

Excellent to see this spectrum.  I think the annotation of CH4 and NH3 answers my question in Mars/Venus, that the format is those identified are absorption lines.  I'm familiar with the 4000-200 cm-1 IR wavelength range, which in nanometers would be 2500 - 50,000 nm, where absorptions are usually vibrations such as stretches, bends and rocking of pairs of atoms in a bond or group of atoms.  Are the absorptions of CH4 and NH3 in this visible spectrum due to much higher energy excitations such as electronic? Or, other types of vibration that appears in the visible region (harmonics?).

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