Callum Potter

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Viewing 20 posts - 61 through 80 (of 135 total)
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  • in reply to: Lodestar Pro, has anyone used one? #583648
    Callum Potter
    Keymaster

    Hi John – happy new year to you too!

    I recently purchased an Ultrastar Pro – which is an upgrade to the Ultrastar. I understand that the main changes with the Pro versions are to do with the electronics; faster downloads and lower read noise. And they now come in a blue body!

    The Lodestar Pro uses the same CCD as the Lodestar X2 – but that is a different CCD to the original Lodestar. Whether this chip has fewer hot pixels I could not say… You could try emailing Starlight Xpress – they are usually helpful. 

    Callum

    in reply to: Telescopes for astrophotography #583531
    Callum Potter
    Keymaster

    It all really depends on what you want to do – but short focal length refractors are a popular starting point for imaging. The wider field of view will be more forgiving of tracking errors, and many are a good match to a DSLR.

    As Paul says – a good tracking mount is essential. And GOTO is useful. If you can get good 30s exposures which you can stack you will find a huge range of potential targets in reach. 

    Callum

    in reply to: Polar alignment #583316
    Callum Potter
    Keymaster

    As Shaprcap only works on Windows, I use PHD2 on my MacBook, with my 50mm EvoGuide and ZWO 290MM camera, and PHD2’s Polar Drift Alignment – it works really well too.

    15 arc-seconds is pretty impressive, though!

    Callum

    in reply to: Life, don’t talk to me about life #583305
    Callum Potter
    Keymaster

    “No phosphine in the atmosphere of Venus”  https://arxiv.org/abs/2010.14305

    in reply to: Nasa announcement #583293
    Callum Potter
    Keymaster

    Just speculating 🙂

    in reply to: SBIG ST Parallel Port Cameras #582434
    Callum Potter
    Keymaster

    Hi Grant,

    I think the SBIG driver does bit twiddling with the parallel port directly that the converters don’t support. 

    Callum

    in reply to: SBIG ST Parallel Port Cameras #582431
    Callum Potter
    Keymaster

    There is a guy in the US that made a parallel port for a raspberry pi and updated the Sbig drivers for INDI to use it, and possibly other Linux LPT drivers.

    I don’t think he has any solutions for Windoze world though.

    Checkout https://github.com/garlick?tab=repositories

    Only other solution really is to find an old Win 7 PC.

    Cheers,
    Callum

    in reply to: Still problems #582350
    Callum Potter
    Keymaster

    Hi Stewart – hopefully your problem will be fixed now too.

    Cheers, Callum

    in reply to: Tried both – no joy #582338
    Callum Potter
    Keymaster

    Thanks Ray,

    I am using a Mac / Catalina too – and this was posted with Firefox.

    I dont seem to be getting your porblem though (i am getting a coiuple of my own!).

    We will investiage further

    Thanks,
    Callum

    in reply to: Still problems #582337
    Callum Potter
    Keymaster

    Hi Ray,

    are you using a PC, Mac, iPad? And what browser (IE, Edge, Chrome, Safari, etc.)?

    And are you accessing the site through http://www.britastro.org or britastro.org ?
    (if you try the other do you get the same problem?)

    Thanks,
    Callum

    in reply to: Imaging onto a Mac… #581962
    Callum Potter
    Keymaster

    Hi Paul,

    I think I just followed the instructions and it worked out ok. I thin I had home-brew installed already though.

    Good luck!

    Callum

    in reply to: Imaging onto a Mac… #581913
    Callum Potter
    Keymaster

    If you are wanting to image planets / Moon you probably need to connect the camera to your laptop.
    There is a MacOs version of Firecapture that works well for me.

    If you want to connect by WiFi you’ll need some sort of computer attached to the camera – something like a Raspberry Pi with INDI or Indigo installed can work if you want to take longer exposures. But does not really work well streaming video.
    Or you can connect a ‘standard’ computer to the camera and use some sort of remote access app (like VNC) to control it remotely via wifi.

    Hope this helps.
    Callum

    in reply to: Christmas Meeting #581701
    Callum Potter
    Keymaster

    I have stickied this to keep it to the top of the list.

    Callum

    in reply to: Star map/atlas #581687
    Callum Potter
    Keymaster

    My current favourite star atlas is the interstellarum Deep Sky Atlas

    See: www.deep-sky-atlas.com

    Its available from Amazon and other places – it is a bit expensive, but it is a really nice, easy to use atlas.

    Callum

    in reply to: Raspberry Pi model 4 thermal improvements #581657
    Callum Potter
    Keymaster

    Thanks David,

    I don’t read MagPi as much as should – good articles there.

    Callum

    Callum Potter
    Keymaster

    Yes, they got in touch with my local society too – and one of our members (Peer Cadogan) will be appearing on the piece and be talking abut EB. Unfortunately John Harris (who is also a Cotswold AS member) was away in France at the time of filming.

    Callum

    in reply to: BAA workshop in Greenock #581484
    Callum Potter
    Keymaster

    Thanks for the feedback Bill & Ronan.

    A very enjoyable weekend, I thought, and much thanks goes to all who did the real organising of the event.

    And it was great to meet up again with so many astro-pals.

    Cheers,
    Callum

    in reply to: Non-Windows stacking software. #581443
    Callum Potter
    Keymaster

    I have aligned fits images using Python, AstroPy and the astroalign package.

    If interested email me, and i’ll send a fairly trivial example python script.

    Callum

    in reply to: Obo no2 #581264
    Callum Potter
    Keymaster

    Hi Jack,

    not sure where your pics went, but uploaded the ones you sent me and they are now appearing.

    Nice looking obsy BTW.

    Cheers, Callum

    in reply to: CPRE Star Count 2019 #580536
    Callum Potter
    Keymaster

    Thanks for alerting us Bill – actually the CPRE got a little ahead of us, as this is a joint BAA / CPRE project that we have been working on for the past couple of months. Helpfully the CPRE kindly offered to host the website submission forms and process the results.

    I hope members will take part, and spread the word to their local societies, forums, and encourage friends and families to take part too.

    Clear skies

    Callum

Viewing 20 posts - 61 through 80 (of 135 total)