Eric Watkins

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Viewing 18 posts - 121 through 138 (of 138 total)
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  • in reply to: Roll-off observatory runners/wheels. #578565
    Eric Watkins
    Participant

    Denis,

    that’s a useful link.  I’m in the process of building a 4.2m x 3.6m roll of roof so getting suitable wheels and track  will be necessary.

    Accessories to large gates seem to be one way to go.  Besides wheels and track electric gates also supply  electric motors and teethed track that allow electrification.  Some builders have also used  up and over garage doors electric motors and track.

    Those wishing  track angled or otherwise may like to consider metal stockbrokers.  They have very long lengths and various shapes and sizes cut to length and deliver.  They are much cheaper that off the shelf DIY

    Regards

    Eric

    in reply to: C/2017 K2 (PANSTARRS) #578302
    Eric Watkins
    Participant

    I managed some images on Wednesday 14th.  imaged with passing high, thin cirrus type cloud.

    C14 Edge F:7.7  Mounted on a Paramount ME, autoguided 10x 180sec unfiltered exposures stacked by addition with Astrometrica.  QSI 532 ME camera binned 2×2  =  1..02  “/pix

    Eric

    in reply to: Secondary mirror offset for a newtonian reflector #578290
    Eric Watkins
    Participant

    Martin,

    thank you, clarifies that matter for me.

    This is going to be a trial run for a 20-22″ F:5.5 Newtonian, Surrier Truss mounted on a Paramount ME for CCD deep sky imaging.

    Cheers Eric

    imaging

    in reply to: The new BAV MAGAZINE SPECTROSCOPY #578285
    Eric Watkins
    Participant

    Hadn’t thought of that Andy, thanks.

    Eric

    in reply to: The new BAV MAGAZINE SPECTROSCOPY #578282
    Eric Watkins
    Participant

    The link given took me to the publication which had had been written in either the German or English language.  I take it then that there is not a fully English version.  Unfortunately, I can get by in Italian,but not German.

    The more pro-am type publications the better and I wish you success.

    Eric

    in reply to: Glass sky survey plates #578275
    Eric Watkins
    Participant

    Sounds like a plan then.

    See you there.

    Eric

    in reply to: Glass sky survey plates #578273
    Eric Watkins
    Participant

    James,

    If your going to the BAA Comets section meeting next month in Northampton I give them to you as  Iwill also be attending .

    Eric

    in reply to: Glass sky survey plates #578271
    Eric Watkins
    Participant

    James,

    I can help you out there.  During my time at Hertfordshire University they skipped the whole southern sky survey plates as taking up too much room and it was all digitized anyway.  I managed to retrieve some from the skip  and could let you have one or two.

    Eric

    in reply to: News about AIP4WIN #577749
    Eric Watkins
    Participant

    I can’t get it to work with windows 10, though I have tried the various fixes propo

    Hopefully any new versions will not need fixes. I expect it’s me and my limited computer skills.

    Eric

    in reply to: Stirling Observatory #577743
    Eric Watkins
    Participant

    Mike

    Whilst on an OU summer school at Stirling Uni one summer during the 80’s I did notice it whilst walking past on a day out.

    Nice to know that all these years later I was correct in what I thought it was. 🙂

    Eric

    in reply to: Condensation #577711
    Eric Watkins
    Participant

    Hi Nik,

    I have a 2.7m Pulsar dome, that sits   on top of a wooden building.

    I found I got heavy dew on the dome and more worryingly, surface water on the metal work of the paramount gem. I also keep a desktop in  a large plastic box.  I keep the PC powered on and have installed a small DE-humidifier that runs  24/7 during the damp season.

    I have had no problems during the past four years. 

    Eric

    in reply to: More meteor spectroscopy #577658
    Eric Watkins
    Participant

    Hi Bill,

    I’ve been following this thread with a great deal of interest.  i is something I’d very much like to get involved with and I’ve been looking at setting up my own station using a Watec 910 HX /RC mono camera (that I could also use for asteroid/star occultation events as and when)

    I’d like a little more guidance on camera lenses and  diffraction gratings and how to source them and mount them in relation to the camera lens.  Maybe you could drop me an email.

    Eric

    in reply to: More meteor spectroscopy #577657
    Eric Watkins
    Participant

    Hi Bill,

    I’ve been following this thread with a great deal of interest.  i is something I’d very much like to get involved with and I’ve been looking at setting up my own station using a Watec 910 HX /RC mono camera (that I could also use for asteroid/star occultation events as and when)

    I’d like a little more guidance on camera lenses and  diffraction gratings and how to source them and mount them in relation to the camera lens.  Maybe you could drop me an email.

    Eric

    in reply to: Astronomy Yearbook 2017 #577650
    Eric Watkins
    Participant

    It would be nice to have regular publication that either lifted the level of “expertise/difficulty” or included more sophisticated  articles. The level of a great deal  of much  amateur work  is on a par with some of the lesser funded, smaller university projects.

    I have subscribed to a number of monthly popular astronomy magazines and find that I skim read through them once and rarely return for further reading.    I’ve stopped taking Sky and Telescope recently and should have done so some years ago.

    in reply to: Cleaning C14 Corrector lens #577564
    Eric Watkins
    Participant

    Thanks for all comments and suggestions .  I think I will settle for Calum’s suggestion of using Baader Optical Wonder Cleaning Fluid and see how I get on with that having first removed loose dust etc with canned air. 

    Regards Eric

    in reply to: Cleaning C14 Corrector lens #577557
    Eric Watkins
    Participant

    Thank you for your replies.

    Martin. Yes I have seen those short films which have been helpful  I will use the much of the technique described but I’m too afraid to try Ron’s method.

    Neil. I’m not removing the corrector plate, just doing the outside and tilting the tube slightly.

    Callum.  I have heard the Baader cleaning fluid mentioned to me in the recent past.  I may take a look at that.

    Richard, thanks .Yes it’s de-ionised water I have and I will filter it and mix as a solution with isoropyl alcohol .

                           Re the washing up liquid this is usually quoted and advice is not to use the waxy ones.  Would fairy liquid do?

                          I’ll use pure kleenex tissues and get the cotton wool from a pharmacist

    Thanks to all for your comments.

      

    in reply to: NASA Moon Tour #577332
    Eric Watkins
    Participant

    About painting the moon black.  It virtually has been.  it reflects about as much light as a lump of coal of the same size and same distence1

    Eric Watkins
    Participant

    Ahh yes of course.  Just a thought that came to me  without thinking it through.

    Cheers Eric

Viewing 18 posts - 121 through 138 (of 138 total)