[Mr Jack Martin]

Well 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]

Ernst,

Good work, interesting paper.

Regards,

Jack

Essex UK

[Mr Jack Martin]

Dave,

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]

A group photo taken by Janice through my camera.

Regards,

Jack

Huggins Spectroscopic Observatory

[Mr Jack Martin]

Ernst,

Its rewarding to see my observations included.

More to follow.

Regards,

Jack

Essex UK

[Mr Jack Martin]

Ernst,

I can also provide baseline observations from 2015-08-26.

Regards,

Jack

Essex UK

[Mr Jack Martin]

Ernst,

Yes OK I will send this observation next week.

Regards,

Jack

Essex UK

[Mr Jack Martin]

Ernst,

My last observation was on 2017-04-01.

Regards,

Jack

Essex UK

[Mr Jack Martin]

Ernst,

Welcome aboard.

I look forward to future collaboration in Spectroscopy.

Regards,

Jack

Essex UK

[Mr Jack Martin]

Ernst,

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]

John,

The 4th document has uploaded successfully.

Jack

Huggins Spectroscopic Observatory UK

[Mr Jack Martin]

John,

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]

Peter,

Good work, as always.

Jack

[Mr Jack Martin]

Tony,

I will bear that in mind.

Thanks,

Jack

[Mr Jack Martin]

Andy,

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

[Mr Jack Martin]

Error message uploaded.

[Mr Jack Martin]

Andy,

That  is what I am trying to do.

I have uploaded the error message for people to look at.

This afternoon I am MaximDL training.

Regards,

Jack 

[Mr Jack Martin]

Thanks Tony for the housekeeping tips.

I have just bias_dark_flat field corrected my spectrum of p cyg but it won’t open in BASS the following error comes up.

Anybody know how to fix this ?

Regards,

Jack

[Mr Jack Martin]

Andy,

My understanding of calibration is a neon lamp as I own a Lhires III.

Do you mean John is rewriting BASS calibration to include bias-dark-flat field corrections ?

By calibration frames do you mean bias-dark-flat frames ?

The ccd temp was set to -5 c as told by an experienced amateur consequently all spectra taken so far are at that temperature.

Regards,

Jack

[Mr Jack Martin]

David,

Yes.

Thank you for your explanation.

I now understand that it is visible to others but not to me !

Regards,

Jack

[Author]

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