I have now analysed the Doppler shifts of the emission and absorption lines in the high resolution spectrum posted here.
http://www.spectro-aras.com/forum/viewt ... 573#p14331
The results (-55 km/s relative to the Earth and +32 km/s relative to the Sun) are satisfyingly close to those from the JPL Horizons website for the time of the observation
Details here on my BAA page
https://britastro.org/node/23284
Cheers
Robin
F3 (NEOWISE) velocities relative to sun and earth
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F3 (NEOWISE) velocities relative to sun and earth
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