Mr Jack Martin

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Viewing 20 posts - 161 through 180 (of 222 total)
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  • in reply to: USB over Ethernet #579216
    Mr Jack Martin
    Participant

    Grant,

    I use Team viewer or Tight VNC PC to PC to control the mount remotely via a 25m Maplin Cat6 Ethernet cable.

    BEWARE you will need to protect / sleeve it when installing against foxes, it was bitten into but survived.

    I can open / close the motorised roll off roof remotely with a key fob.

    Regards,

    Jack

    Essex UK  

    in reply to: More Lhires III mods #579214
    Mr Jack Martin
    Participant

    Alun,

    Thanks for the link and further info.

    Shame that motor is a bit bulky, I assume you don’t have it permanently set up in an observatory.

    Wouldn’t a bigger case be a cheaper option than another motor and having to replace what works ?

    I see there are a few options from RVO to consider;

    https://www.rothervalleyoptics.co.uk/jmi-motofocus-for-celestron-c8-.html

    Please can you post a picture showing how and where the motor is attached / bolted to the Lhires.

    How many holes did you have to drill ?

    This is a worthwhile modification.

    Thanks for your efforts.

    Jack

    Essex UK

    in reply to: More Lhires III mods #579208
    Mr Jack Martin
    Participant

    Alun,

    Excellent work well done.

    I would like to do the same conversion for the collimating lens on my Lhires.

    What belt would you recommend and from where ?

    Regards,

    Jack

    Essex UK

    in reply to: dehumidifiers #578982
    Mr Jack Martin
    Participant

    Andy,

    Which dehumidifier do you use and where is it available from ?

    Regards,

    Jack

    Essex UK

    in reply to: How do you find your target? #578981
    Mr Jack Martin
    Participant

    Andy,

    The Skywatcher flip mirror is adjustable up / down by turning a grub screw with allen key at the bottom of the unit.

    Regards,

    Jack

    Essex UK

    in reply to: How do you find your target? #578963
    Mr Jack Martin
    Participant

    This is the electronic / visual finder I use Atik 314 – Skywatcher flip mirror – Borg 45 ed modular which I just finished setting up incase of a camera or computer failure.

    BUT there appears to be no sideways adjustment (only up and down for the mirror) for getting the object in the centre of the eyepiece crosshairs, which is disappointing but at least the object is in the field of view !

    Regards,

    Jack

    Essex UK

    in reply to: How do you find your target? #578962
    Mr Jack Martin
    Participant

    Andy,

    Which flip mirror were you using on your telescope ?

    Regards,

    Jack

    Essex UK

    in reply to: MRes spectrograph #578771
    Mr Jack Martin
    Participant

    Andrew,

    Congratulations on your achievement.

    To be able to build an echelle spectrograph and get it to work is not easy.

    With a special interest in Spectroscopy I feel so privileged to be amongst such a talented bunch of like minded people.

    Perhaps one day you will give a presentation to the BAA on how you accomplished such a worthwhile project.

    I am especially interested in the technical side.

    Regards,

    Jack

    Essex UK  

    in reply to: Current state of the Halpha campaign of VV Cep #578752
    Mr Jack Martin
    Participant

    Thanks for the update Ernst.

    I have been on holiday and will be sending more spectra next clear night. 

    Regards,

    Jack

    Essex UK

    in reply to: LED street lamps #578751
    Mr Jack Martin
    Participant

    THANK YOU everyone for your comments.

    We are lucky indeed to have software that filters out this nuisance.

    Its only a matter of time before they arrive where I live, but at least the lights are switched off from 1 to 5am.

    I have seen both types at night next to each other, a strange site !

    Regards,

    Jack

    Essex UK

    in reply to: LED street lamps #578693
    Mr Jack Martin
    Participant

    Paul,

    Which software are you referring to ?

    Regards,

    Jack

    Essex UK

    in reply to: Lhires results #578692
    Mr Jack Martin
    Participant

    Alun,

    Its certainly not a cheap hobby but if you want to do scientifically useful work its worth the expense and the rewards.

    I have been monitoring  vv cep since 2015-08-26 now have over 90 nights of data.

    Regards,

    Jack

    Essex UK

    in reply to: Lhires results #578654
    Mr Jack Martin
    Participant

    Alun,

    Welcome aboard, nice results.

    I use a modified Lhires III too, and have all the gratings.

    Regards,

    Jack

    Essex UK

    in reply to: Power Generators #578636
    Mr Jack Martin
    Participant

    Howard,

    Solar powered with an uninterruptable power supply.

    I have the latter in place.

    Regards,

    Jack

    Essex UK  

    in reply to: A cautionary tale #578612
    Mr Jack Martin
    Participant

    David,

    I glad you solved the problem.

    Paul,

    I have not heard of this problem with the 414ex, but the one I had suffered from interference fringes especially visible on the flats, caused by the glass cover over the chip, so I exchanged for the 460 ex which works well.

    Regards,

    Jack

    Essex UK

    in reply to: PSN at2017gjn in NGC1067 confirmed using ALPY 200 #578583
    Mr Jack Martin
    Participant

    Robin,

    Congratulations I echo Jeremy’s comments.

    Regards,

    Jack

    Essex UK 

    in reply to: vvCep and agPeg #578582
    Mr Jack Martin
    Participant

    Hugh,

    Interesting to see how the H beta line is changing.

    Regards,

    Jack

    Essex UK

    in reply to: VV Cep in eclipse #578581
    Mr Jack Martin
    Participant

    Robin,

    Excellent work an interesting pattern.

    What is chromatism ?

    Regards,

    Jack

    Essex UK

    in reply to: vvCep and agPeg #578507
    Mr Jack Martin
    Participant

    Steve,

    Nice spectra.

    Regards,

    Jack

    Essex UK

    in reply to: VV Cephei news #578501
    Mr Jack Martin
    Participant

    Here is the latest VV Cephei H alpha emission profile for 2017-08-24.

    Regards,

    Jack

    Essex UK  

Viewing 20 posts - 161 through 180 (of 222 total)