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Andrew Smith

2020 Dec 3
2020 Nov 30
2020 Jun 16
2020 Feb 17
2019 Dec 29
2019 Dec 22
2019 Dec 15
2018 Jul 3
2018 Feb 5
2017 Dec 15
2017 Nov 29
2017 Nov 18
2017 Nov 13
2017 Jun 19
2017 Mar 31
2017 Feb 14
2017 Jan 26
Test image from the medium resolution echelle spectrogrqph. For fun it was captured using The Sky X Pro flipped in MaxIm DL 4, extracted and calibrated in BASS and roughly normalised and measured in ISIS!
Regards Andrew
I am here setting the focus of my new, home made, fibre fed echelle spectrographs focus. It has a target R ~ 8000 and initial test show this should be reached comfortably. It is in a temperature controlled enclosure and is currently undergoing final testing in my kitchen before being moved to the observatory. The temperature control is to improve the accuracy of radial velocity measurements.
Regards Andrew
2016 Dec 28
While an old observation this was the first reported case (as far as I know) of an amateur discovering a candidate Be star using an automated spectroscopic search. I found that Thierry Lemoult was also undertaking such a search at the same time. I was just eye-balling the spectra as they came in, while he was reducing his, so I sneaked in first, although Thierry found more. Our results are here http://www.astrosurf.com/aras/be_candidate/auto-be-candidate.html.
With spectroscopy taking off at the BAA it shows one example of what can be done at low resolution (R ~ 320).