Quote:
Originally Posted by Peter Ward
What's the bandpass of your SII filter? I went 10 hours with a 3nm filter and
only got noise.
The SII data you have captured simply might be leakage from
a broader pass filter.  |
Interesting point, all filters pass through off-band light flux.
Chris, your SII data seems to mimic the Ha emissions, which I'm guessing would look like a flood light with the same exposure time.
Assuming the SII signal is not "leakage" and is there, then the relative brightness to the Ha data would be vastly different hence, the combined colour should not depart much from Ha red.
Just my 2 cents worth.