[Aavso-photometry] Baseline photometry of HD 74156 at CBA BelgiumObservatory - results

[Wolfgang Renz]

Hello Tonny

Stopping down the aperture is no good choice to beat
scintillation noise as the gain of the longer exposure time
is more than lost due to the smaller diameter.

Beside the good advice of Radu and Arne you still have
the possibility to stack even more images.

Clear skies
  Wolfgang

-- 
Wolfgang Renz, Karlsruhe, Germany
Rz.BAV = WRe.vsnet = RWG.AAVSO