Hmm ... I am far too far south be be able to separate Zeta Herculis. A 1.3” separation with a delta magnitude of 2.5 is definitely achievable at higher elevations with my 140mm refractor but I will have to pass on this one.
Steve.
Quote:
Originally Posted by bigjoe
Hi Bob , Steve.
Yes ...some like Zeta Herculis are getting easier over the recent years, and by 2023 will be over 1.5" apart!!
According to stelledoppie its separation is about 1.25 " currently ; so tough!!.
Will try it again in an etx125 , 4" ed ? , in next few days..weather permitting ; should be a good test in that 115 ed!!
Can of course do it in 254mm SCT and c8 .
bigjoe.
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