Quote:
Originally Posted by Terry B
How did you avoid background stars?
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Thanks! Pure luck Terry, but you can always rotate the grating a little. Also, with the grating on, the camera doesn't go particularly deep in two minutes.
I've attached a full-frame single sub with T Pyx and its spectrum marked (arrows to strong H-alpha & H-beta responses). Up near the red end, see how the 'spear' bisects two faint little stars! And look at all those other spectra going to waste.
Anyway, look forward to yours!
Cheers -