Spectrum NGC7009 Questions

[theodog]

Hi All,
My image is of NGC7009 taken with a Star Analyser 100.
30 sec, 12" f5 St7e.
:help:
Can anybody identify the bright lines in the spectra?
I assume one is hydrogen and another oxygen.
:D
This should help me calibrate my spectral system?

Thanks in advance.:)

[sheeny]

Hey Jeff,

I've only just been reading about the Star Analyser and Visual Spec... but shouldn't the primary image be on the left?:shrug: Just based on what I've seen of the examples on the Visual spec web site and tutorial, they all have the primary image on the left...

BTW I have seen an example on the visual spec or star analyser site that shows nebulae spectra, which should exactly answer your question (I think) but I haven't found it yet.

Does anything here help?
http://www.astrosurf.com/vdesnoux/tutorial.html

Al.

[theodog]

Yes Al, when I set the unit up I put the indicator on the left, as viewed from behind the camera. I will have to reverse the image.


Yes. I haven't seen this site before. something in english is good. My problem is that I need some definite spec lines for claibration.
Thanks for your help.:thumbsup:

[sheeny]

Found it, Jeff.

Half way down - planetary nebula example.

http://www.patonhawksley.co.uk/gallery.html

Al.