Observation by Tony Rodda: Uranus

Uploaded by

Tony Rodda

Observer

Tony Rodda

Observed

2016 Dec 21 - 14:16

Uploaded

2017 Jan 01 - 14:22

Objects

Uranus
Spectrum

Equipment

C925
ALPY600
Atik460EX

Location

Newcastle

Target name

Uranus

Title

Uranus

About this image

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.

Files associated with this observation

Uranus.png (65.8 kB)

Like this image

Dr Andrew Smith, Tom Moran, Clive Beech, Jeremy Shears, Tony Rodda, Peter Carson, Derek Robson

Comments

Derek Robson, 2019 Aug 11 - 15:15 UTC

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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