Hi Tom, Only me and thee in here at the moment :-( I will remind the others when the first batch is sent out. We have six Beta testers confirmed and one...
Hrm... guess I'd better put my telescope back together then - its currently in bits all over the house getting its summer servicing and a few, urm, ...
Hi Tom, There could be something in this. I was looking up about vignetting the other day for another reason (I am starting to see vignetting with my camera at...
Hi Robin, Tom and other 'staranalysers'. Well, my grating and spare bits arrived safely this morning, so here's hoping the weather will cooperate soon. I'll...
Morning Adrian. Have haven't been home to check my post yet - what are you initial impression of all the bits? I'd suggest you kick off with a range of bright...
Thanks, Tom. I should have looked at your website first. That's a very useful tutorial you've produced .... everything I need to get started! My initial...
Hi Robin. The grating and accessories look great! I just wanted to ask you (or PH) about the recommended method for cleaning the grating; mine has some specks...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the staranalyser group. File : /Star...
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Jul 5, 2005 3:29 pm
11
Hi all, Great to here the first batch of Star Analysers are out :-) Did they come with an instruction manual? I was a bit late producing it so in case you...
Hello Adrian, Glad you got your SA overnight. 4 went out yesterday and 2 more today. We had a few problems with our pre-production units (which I won't bore...
Hi Adrian, The manual should give some idea of what to go for first. As someone new to spectroscopy I would be interested in your feedback on the user manual....
Hi Robin. Thanks. No, I didn't get a copy of the manual but have just been browsing the online version. looks very good and answers my question about...
If anyone is interested in knowing the diameter of the grating actually used in their particular setup, you can calculate it as follows: Diameter = sensor chip...
Hi again Adrian, The AR coating will stand wiping with a soft cloth - treat it as you would a lens surface - with respect. Regards Bob Hawksley PHEL ... a ... ...
Hi everyone OK - just got my package through - seems very professional. Since its rainy ;o( I've been thinking about this a bit. I guess we need point sources...
Hi Rob, Did you get your instruction manual? If not you can download it from the files section. It has a bit about what limits the resolution in there. (FAQ 12...
Hi Robin Thanks, yes, I did get the manual and was thinking that it didn't mention focal length etc as a factor in the size of the spectrum image - but as a...
Hi all, First a couple of famous bright stars P Cygni and Beta Lyrae. No need for long exposure with the SC3 modified webcam with these :-) They would probably...
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Jul 10, 2005 4:01 pm
23
Hi all, I have made a few minor changes and one major correction to the user manual. (The formula for the calculation of dispersion given under "Wavelength...
<http://astro.neutral.org/tmp/vega.tif> Managed to get the first spectrum out of the new grating. This was Pete using it on his LX200 instead of me on my...
Nice first light Tom and Pete What camera were you using? Good to see on QCUIAG your Newtonian and newly cooled SC3 camera back in operation again BTW Robin ...
Hi Tom, I gave your spectrum a quick run through Visual Spec. The atmospheric lines are showing up nicely too. I make the calibration 29.5A/pixel which makes...
Thats exactly the same resolution i came up with! ;-) I don't know which of the spacers pete was using, I was too busy fiddling with my guidescope focus. I'll...
... lines up in ... If I stretch the spectrum image, I can see various lines apart from Ha from around 5870 to 8670. Mostly from O2 or H20 in the atmosphere I ...
Robin I noticed those bands in the stretched result during processing... but wasn't certain if they were real. I will check out Christians image later on. ...
