Quote:
Originally Posted by lepton3
Fascinating. This is a whole league forward from slipping an OIII filter in and noticing everything but the planetary gets dimmer.
How faint a target is practical with your rig?
-Ivan
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I Think the limit is my ability to put the target on the spectrograph slit. If the object is visible with a 5sec exposure on my STi guided then I can probably succeed. ?mag 13 but I'm not sure til I try.