Orpington Astronomical Society

Astronomy => Technical => Topic started by: Carole on Jul 13, 2009, 00:29:28

Title: Female DIY!!
Post by: Carole on Jul 13, 2009, 00:29:28
I hesitate to put this in technical, but couldn't find anywhere else that fitted the description.

After 4 months I finally managed to carry my equipment downstairs and erect it.  (I had been told not to carry anything heavy until about now).  However I do still have limited movement in my right shoulder and arm (which will go on for many months) and so my first priority was to try to find somewhere downstairs where I could keep most of my kit so I don't have to keep lugging it downstairs all the time.  Now my lovely dog is no longer with us, I think I can utilise the corner where her dog flap is but as this is in the conservatory, I can only put certain things in there as it gets rather hot, plus I thought I might construct a weatherproof container on the outside of that area.  

I have also spent some time while I have been incapacitated setting up a website so I can keep my images in order, in one place, using some webspace that Mike kindly gave me.  I have written the text so that non Astronomical people can also understand most of it.
http://carolepope.amateur-astronomy.org/index.html

This evening I spent a few hours improvising a way to attach my webcam to my Polarscope so I don't have to perform contortions trying to align Polaris whilst at the same time holding a torch over the top to light it up.  This is partly due to the fact that my right arm still has restricted and painful movement and also because I am not getting any younger and find all these contortions quite uncomfortable.  

Anyway, I rattle on.  If any-one would like to see my modifications in detail I have put them on my website.  As I said this is a female bit of DIY so don't laugh, the main thing is it works!

Doing the Contortions
(http://carolepope.amateur-astronomy.org/_wp_generated/wp07e32bc2_0f.jpg)

Eyepiece to eyepiece (same size), plus webcam is an awkward shape
(http://carolepope.amateur-astronomy.org/_wp_generated/wp7c06a839_0f.jpg)

Tried my other webcam, and removed the "eyepiece" and found the inner piece fits in the polarscope.
(http://carolepope.amateur-astronomy.org/_wp_generated/wp187cce48_0f.jpg)

Tied some cord around the stand, and then around the Webcam.  Finally I tied the cord around the 3 screws of the Polarscope.  It works!!
(http://carolepope.amateur-astronomy.org/_wp_generated/wpbd898e4e_0f.jpg)

AND I can see the Polaris ring on the laptop.
(http://carolepope.amateur-astronomy.org/_wp_generated/wpcb62f85c_0f.jpg)

Carole
Title: Re: Female DIY!!
Post by: JohnP on Jul 13, 2009, 08:50:54
Carole - Well done on the webpage - looks very good. Glad to see you are almost back to using your kit...

John
Title: Re: Female DIY!!
Post by: Carole on Jul 13, 2009, 08:56:32
Thanks John.

Be nice to be able to get some more images on it.

Carole
Title: Re: Female DIY!!
Post by: Mike on Jul 13, 2009, 09:46:45
Carole. You need to:-

a) Get a red LED fitted inside the polar scope tube so that it lights up the reticule.
b) Fix a 90 degree prism onto the end of the polar scope to stop you having to bend down.
Title: Re: Female DIY!!
Post by: RobertM on Jul 13, 2009, 11:10:32
I'm glad you're now up to using your kit.  You should definitely follow Mikes advice as the alignments stars aren't particularly bright (polar scope probably only has a 20mm objective lens) and you may have trouble seing them in a webcam.

Now you have a webpage to display your hard work there should be no holding you back ;)

Robert 
Title: Re: Female DIY!!
Post by: Carole on Jul 13, 2009, 12:25:09
Quoteyou may have trouble seing them in a webcam.

You're right!  I forgot that you can't see stars with a webcam. 
Bugger! and I thought I was being so clever.

Mike,
Quotea) Get a red LED fitted inside the polar scope tube so that it lights up the reticule.
b) Fix a 90 degree prism onto the end of the polar scope to stop you having to bend down.
Perhaps I could pick your brains on how to do this, because I can't use a right angled lens in the eyepiece of the solar scope as it's not designed for inserting anything.

I have come to realise since joining the group and reading many posts that fellas have a different sort of education to girls, as I never learnt the sort of skills needed to do this sort of thing at school.  i.e. very basic electrics, no metal work etc etc.

Thanks

Carole
Title: Re: Female DIY!!
Post by: Mike on Jul 13, 2009, 14:36:28
Carole,

Fitting an LED is relatively easy to do. If you were to drop the mount off with me I could fit one for you. Though it will have to wait till August as i'm busy as **** right now. An IT training centre has just asked me for a huge order of electronic kits from my webshop so will be busy for a little while.

The prism thing will require some more thought. A webcam should be able to see Polaris as that is the only star necessary to see. Either that or a low lux mono security camera. As long as it can see the reticule and polaris you'll be fine. You could even buy a cheapo small LCD screen to fit onto the leg of the tripod to view it on.
Title: Re: Female DIY!!
Post by: Carole on Jul 13, 2009, 19:28:46
Thanks Mike, I thought I had replied to you, but it seems to have disappeared into cyberspace.

Many thanks Mike, can I drop the mount over to you just before I go on holiday (I go 12th August)?
I won't be back until the Sunday of DSC so will miss that unfortunately.

Meanwhile, I'll give viewing Polaris through the webcam a go and see what happens.

Thanks
Carole