Quote:
Originally Posted by Merlin66
Richard,
A couple of comments..
Can you add a flip mirror in front of the camera? Makes it much easier to aquire the target.
( I can use GOTO and CdC with the NEQ6pro to just "drop" the target onto the grating....)
It's standard to present the spectra with the zero order to the left - this gives a spetrum orientated with blue to the left and red to the right - usually needed when you start to do calibrations...
Good start.
Well done.
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Thanks Ken. Glad to hear I'm on the right track!
A flip-mirror is a great idea - I will need to add that to the shopping list. If I had used my normal setup procedure I would be able to "drop" targets onto the sensor as well (especially at only 480mm FL), however it was a last minute decision to set up the second mount for spectroscopy (I dont have a permanent setup) and so I didn't finesse the polar alignment / GOTO model.
Re the spectra I posted before, I had the zero order to the left and had calibrated on an A-type star. I had just cropped the curve. I have now gone back and selected frames with better FWHM for calibration and presentation. Hydrogen Balmer lines are also shown for reference.