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Mr Jack Martin
ParticipantHello all,
I would attach a calibration lamp spectrum.
But bigger than 2 MB is there any way round this ?
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantMarc,
Perhaps the difference between our spectra is due to the fact that you use Angstrom units and I use nanometers so a factor of 10 out.
Ernst take note but I am sure you account for this when combining our results.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantMarc,
I am using a 23 micron slit as opposed to 35 micron.
So would the difference in slit width account for changes in the baseline ?
The weather here in the UK is not good.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantAttached is last nights 2017-07-25 result.
Still no change in the V H alpha emission line.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantMr Jack Martin
ParticipantWell done, good work and congratulations to Marc and Richard.
I know just how much time and effort goes into a book or two.
I will be ordering copies in due course.
Regards,
Jack
Essex UK
Author A Spectroscopic Atlas of Bright Stars
Co-author Practical Amateur Spectroscopy
Mr Jack Martin
ParticipantErnst,
Good work, interesting paper.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantDave,
I have the Vixen 2.1 excellent BUT you need 2 things good skies and good vision they are not suitable with a spectacle prescription of for example +6.75. They are best used without specs but are adjustable to about +/- 5. The manufacturers don’t bother to tell you !
Do not buy the cheaper version(s).
Jack
Huggins Spectroscopic Observatory UK
Mr Jack Martin
ParticipantA group photo taken by Janice through my camera.
Regards,
Jack
Huggins Spectroscopic Observatory
Mr Jack Martin
ParticipantErnst,
Its rewarding to see my observations included.
More to follow.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantErnst,
I can also provide baseline observations from 2015-08-26.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantErnst,
Yes OK I will send this observation next week.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantErnst,
My last observation was on 2017-04-01.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantErnst,
Welcome aboard.
I look forward to future collaboration in Spectroscopy.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantErnst,
My baseline of observations start from 2105-08-26 to date, a long term study, I intend to contribute scientifically useful data.
Regards,
Jack
Essex UK
Mr Jack Martin
ParticipantJohn,
The 4th document has uploaded successfully.
Jack
Huggins Spectroscopic Observatory UK
Mr Jack Martin
ParticipantJohn,
I contacted a Professional astronomer and good friend Professor Steve Shore who has provided the following information which we hope will answer your question.
There is also another document which I can’t upload so will send you an e mail.
http://rredc.nrel.gov/solar/spectra/am1.5/ASTMG173/ASTMG173.html
https://arxiv.org/pdf/1405.4780.pdf
http://adsabs.harvard.edu/abs/2010A&A…523A..57V
Regards,
Jack
Huggins Spectroscopic Observatory UK
Mr Jack Martin
ParticipantPeter,
Good work, as always.
Jack
Mr Jack Martin
ParticipantTony,
I will bear that in mind.
Thanks,
Jack
Mr Jack Martin
ParticipantAndy,
I will check the FITS header fields.
Just checked MaximDL and its definitely a FITS file all saved as .fit files.
The bias dark and flat field processing were followed in accordance with John Blackwells tutorials.
Regards,
Jack
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