Mr Jack Martin

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Viewing 18 posts - 221 through 238 (of 238 total)
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  • in reply to: VV Cephei High Resolution #578266
    Mr Jack Martin
    Participant

    Ernst,

    Its rewarding to see my observations included.

    More to follow.

    Regards,

    Jack

    Essex UK

    in reply to: Radius Estimation of VV Cep´s disk #578147
    Mr Jack Martin
    Participant

    Ernst,

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

    Regards,

    Jack

    Essex UK

    in reply to: Radius Estimation of VV Cep´s disk #578146
    Mr Jack Martin
    Participant

    Ernst,

    Yes OK I will send this observation next week.

    Regards,

    Jack

    Essex UK

    in reply to: Radius Estimation of VV Cep´s disk #578138
    Mr Jack Martin
    Participant

    Ernst,

    My last observation was on 2017-04-01.

    Regards,

    Jack

    Essex UK

    in reply to: I am new here #578129
    Mr Jack Martin
    Participant

    Ernst,

    Welcome aboard.

    I look forward to future collaboration in Spectroscopy.

    Regards,

    Jack

    Essex UK

    in reply to: Radius Estimation of VV Cep´s disk #578128
    Mr Jack Martin
    Participant

    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 

    in reply to: Full Earth’s Spectrum #577938
    Mr Jack Martin
    Participant

    John,

    The 4th document has uploaded successfully.

    Jack

    Huggins Spectroscopic Observatory UK

    in reply to: Full Earth’s Spectrum #577937
    Mr Jack Martin
    Participant

    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

    in reply to: Comet 45p movie and image #577934
    Mr Jack Martin
    Participant

    Peter,

    Good work, as always.

    Jack

    in reply to: Master dark frame #577933
    Mr Jack Martin
    Participant

    Tony,

    I will bear that in mind.

    Thanks,

    Jack

    in reply to: Master dark frame #577879
    Mr Jack Martin
    Participant

    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

    in reply to: Master dark frame #577873
    Mr Jack Martin
    Participant

    Error message uploaded.

    in reply to: Master dark frame #577872
    Mr Jack Martin
    Participant

    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 

    in reply to: Master dark frame #577841
    Mr Jack Martin
    Participant

    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

    in reply to: Master dark frame #577838
    Mr Jack Martin
    Participant

    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

    in reply to: E Mail #577837
    Mr Jack Martin
    Participant

    David,

    Yes.

    Thank you for your explanation.

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

    Regards,

    Jack

    in reply to: Master dark frame #577827
    Mr Jack Martin
    Participant

    Thank you all for your replies.

    The Atik 460 is cooled to -5 c is that OK ?

    I will read through the BASS project user guide to see if I can create a master dark frame.

    I assume the same procedure applies to flats and that I need to take a set say 10 after each observing run. ?

    My Lhires II has a built in flat lamp.

    Regards,

    Jack

    Huggins Spectroscopic Observatory UK

    in reply to: MaxIm DL5 FITS header PTAREA #577817
    Mr Jack Martin
    Participant

    Andy,

    Thank you for you step by step reply.

    This information does not appear to be available from Celestron when looking at the C14 specs or anywhere else.

    Regards,

    Jack

    Huggins Spectroscopic Observatory UK

Viewing 18 posts - 221 through 238 (of 238 total)