Saturn, 2018-09-02

Tonight I put up the N 150/750 scope, with the almost-for-free extension tube to get meaningful sizes for the projection of the planets. Because the ADC I order from the internet still has not arrived, the dispersion is severe. However, there is a trick: to get the most out of the Cassini division, I used only the red channel as luminance, so lots of editing went into each Saturn-picture. The seeing was surprisingly good at first glance, but the stack quality revealed it was more of wishful thinking. Camera: ASI 224 MC, mount: HEQ5. The grey 1.25″ extension tube is from the nearest hardware store.

stack, before RGB align

version

the red channel as luminance, the Cassini division shows up using this cheating

red as luminance

Saturn-candidate

a soft, RGB picture

a red as luminance picture

version

Saturn, 2018-09-02

2018.09.02. werk1