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Post by howie1 on May 23, 2017 12:00:24 GMT
Jumped onto one of our Aussie astro dealers just now looking for IDAS filters and while browsing through the filters I saw this thing called a Star Analyser SA-100. Looked interesting so I looked for Youtube video of its use and I found it extremely interesting! Vid link is below. Basically a fine prismatic etched filter which screws onto DSLR's both lens and prime fitment, or any astro camera with a 1-1/4" nosepiece and you point it at stars, planets or supernova. The camera produces a fine spectral line to the side of the object which you can then load into some software which comes with it which will show you the chemicals in it, as well as the age, type of star/supernova, and redshift distances. Just when I was thinking I had all the astro gear I needed along comes this, but at $AUD 219 it isnt that expensive. So maybe a great xmas gift suggestion from my kids this year. LOL
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Post by Dragon Man on May 23, 2017 12:48:51 GMT
Nice find Howie.
I haven't seen one of them for about 10 years. They have been around for a very long time. They have several names: Star Grating, Diffraction Grating, Spectrum Analyser, Spectroscopy Filter. All the same thing. They are fun to use, and you can see at a glance what elements are in each star.
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Post by Deleted on May 23, 2017 12:57:38 GMT
Howie I am not sure I want to loan my Infinity out but I am happy to loan you my star analyser 100 which I have not used in the 2 years I have had it and dont look like using it in the near future. I am having enough trouble getting basic shots with the cameras I have got without complicating them with spectroscopy. I can also loan you "Astronomical Spectroscopy for Amateurs" by Ken Harrison if you like. Good luck mate Paul
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Post by Rick in NWArk on May 23, 2017 18:41:37 GMT
I have the SA-100 too. I have really enjoyed using it - I use it with the RSPEC software. It's very cool. I have a goal of doing live spectroscopy broadcasts but I didn't have a good enough color camera. Now that I have the RT IMX224 camera, I'm good to go - as long as I can fit the diffraction pattern on the 1/3" chip.
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Post by Deleted on May 23, 2017 19:50:50 GMT
I probably shouldnt have been so flippant about the SA-100. I do have a goal of learning spectroscopy and do have the cameras but I have so much other stuff to learn first that spectroscopy is way down the track Paul
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Post by howie1 on May 24, 2017 3:36:57 GMT
I probably shouldnt have been so flippant about the SA-100. I do have a goal of learning spectroscopy and do have the cameras but I have so much other stuff to learn first that spectroscopy is way down the track Paul No worries Paul ... won't hold you to sending it all up here. It does look very interesting though. Appeals to my inquisitive nature. cheers Howie
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Post by howie1 on May 24, 2017 3:38:52 GMT
Nice find Howie. I haven't seen one of them for about 10 years. They have been around for a very long time. They have several names: Star Grating, Diffraction Grating, Spectrum Analyser, Spectroscopy Filter. All the same thing. They are fun to use, and you can see at a glance what elements are in each star. I'd never seen them before Ken. Certainly was surprised on googling them when I saw them on Bintels filter pages. So you gave it go then? Any images still from your efforts? Be well interested to see what they look like. Cheers Howie
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Post by howie1 on May 24, 2017 3:46:16 GMT
I have the SA-100 too. I have really enjoyed using it - I use it with the RSPEC software. It's very cool. I have a goal of doing live spectroscopy broadcasts but I didn't have a good enough color camera. Now that I have the RT IMX224 camera, I'm good to go - as long as I can fit the diffraction pattern on the 1/3" chip. Ahh Rick ... I'll ask the same question I posted Ken just now ... do you have any photos lying around in folders from when you gave it a go? Yes, thats the software the mob sell with the filter on their website. And a bunch of charts (apparently) which is in their vid I posted earlier. Shows the supernova type and elements fluffing off into space and how fast its expanding its 'bubble'. All looks real sweet stuff. I can imagine getting the gist of it all and doing some at the usually well attended star parties (one of which coming up this Saturday). You may have seen my posts ... we usually get 30+ scopes and 60+ people out there. And thats not counting a bunch who never get 'counted' cos they come in to the Lake and on seeing the car park full, take a walk up and down a couple of times asking questions and taking a look, then drive up the road to the hill nearby ... one can only guess what they get up to up there
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Post by ChrisV on May 24, 2017 9:57:47 GMT
There's a spectroscopy lover on IIS, Merlin, who you should probably talk to.
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Post by Dragon Man on May 24, 2017 10:42:00 GMT
Howie, no mate, no photos. Back when I used one was before I even had a camera (about 25 years ago). And when I had a squiz through one about 10 years ago it was in another members scope. He now lives in Israel.
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Post by Rick in NWArk on Jun 1, 2017 21:53:06 GMT
I have the SA-100 too. I have really enjoyed using it - I use it with the RSPEC software. It's very cool. I have a goal of doing live spectroscopy broadcasts but I didn't have a good enough color camera. Now that I have the RT IMX224 camera, I'm good to go - as long as I can fit the diffraction pattern on the 1/3" chip. Ahh Rick ... I'll ask the same question I posted Ken just now ... do you have any photos lying around in folders from when you gave it a go? Yes, thats the software the mob sell with the filter on their website. And a bunch of charts (apparently) which is in their vid I posted earlier. Shows the supernova type and elements fluffing off into space and how fast its expanding its 'bubble'. All looks real sweet stuff. I can imagine getting the gist of it all and doing some at the usually well attended star parties (one of which coming up this Saturday). You may have seen my posts ... we usually get 30+ scopes and 60+ people out there. And thats not counting a bunch who never get 'counted' cos they come in to the Lake and on seeing the car park full, take a walk up and down a couple of times asking questions and taking a look, then drive up the road to the hill nearby ... one can only guess what they get up to up there I do... somewhere... I'll have to look in multiple spots as its probably been 18 months since I've played with it and rSpec. Now that I'm 100% into a club, I've wanted to do a workshop on it. --Rick
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