Hi Ido, It is manufactured and sold by Paton Hawksley Education Ltd so the best thing to do is e-mail them with your order at patonhawksley "at" btconnect...
Robin - I see that the Star Analyser is 100 l/mm. On the Paton Hawksley site they offer various gratings up to 600 l/mm. On the assumption that more is better,...
I thought Robin explained in an early msg on this group the reason why, in this specific spectro application, more is not better and referred to C.Buil's work...
Hi Brendan, As you can see from the name "Star Analyser 100" we have left our options open to perhaps produce other models in the future ;-) However, we...
Hi Mirko, The grating prism combination (Grism)is an interesting one. As Christian Buil shows in his paper, it should theoretically reduce the abberations...
Has anyone tried to use the Planck profile feature of VSpec 3.3? I always seems to divide by zero and shut down for me. Has anyone else noticed this? Tim...
Hi again Ido, I see Paton Hawksley have now got their on line ordering system running http://www.patonhawksley.co.uk/staranalyser.html Robin ... it? ... ...
Just to keep Star Analyser users informed but completely unconcerned, S&T [Oct'05] New Produces Showcase features the Rigel Systems spectroscope eg an...
Hello, Why is it possible to see the emission/adsorption lins with a silt + prism or a blazed filer- but it is impossible to see them with a regullar prism by...
Hi Ido, You should see the spectrum of point sources like stars with a prism without a slit, just like you can with a grating. Note that compared with a...
... For completeness here: As "Nytecam" has just pointed out on the "amateur_spectroscopy" group, prisms require a collimated light beam and do not work in the...
<http://astro.neutral.org/imagehtml/20050817_PK_64_5.1.html> Another result from my batch of planetary nebula spectra in August. This is a very Strange...
Sorry about the cryptic post. It looks like the original reply went astray. I was just saying that the spectrum reminded me of a WR star and it turns out that...
Hi Robin I have been getting a bit further with this object, but I am still struggling to identify the spike around 5707Å I think the "shoulder" to the right...
Hi, Just wanted to show you an intensity profile obtained yesterday. (of course using the Star Analyser 100) http://www.geocities.com/astrog2/slr.htm Cheers, ...
<http://astro.neutral.org/imagehtml/20050817_ngc6884.html> This planetary nebula is a little easier to fathom out! ;-) I think I got all the lines in the right...
Hello, After some futility search - i hope someone here have the answear: I sill don't fully understand what cause the light to band - when using a Diffracting...
All waves have the property that they change direction when they pass by an opaque object...called diffraction (see also: Huygens Principle). Within the...
Hi Ido, The light shines through the gaps between the lines on the grating. Each gap acts as a separate source of light. The light radiates from each slit in...
Try "Young's slits" in search engine. Nytecam ... Email sent from www.ntlworld.com Virus-checked using McAfee(R) Software Visit www.ntlworld.com/security for...
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