I managed to record the 9 brighter satellites of Saturn on 15th October, whist waiting for Mars to clear the trees along our eastern horizon.
I used the Tak Mewlon 210 F11.5 with a Televue x2.0 Powermate (4830mm) and the ZWO ASI1600MM camera. It was quite wonderful to use the ASI1600MM as a “deep sky” camera to record a series of 1 sec, 5, sec, 20 sec and 30 sec exposures to tease out the moons and then switch to Firecapture and set an ROI of 1024x768 to record an LRGB Series of SER files.
No swapping cameras, no re-alignment, no refocusing required, etc.
I processed the LRGB SER Files to produce an LRGB image of Saturn and then I blended it with the 1, 5, 20 & 30 sec exposures to reveal the 9 satellites. These longer exposure frames have been non-linear stretched, to tease out the dimmer moons, so the brightness relationship between them is not accurate.
Name Mag PA° Sep"
Mimas 13.3 248.8 18.0
Enceladus 12.1 118.6 24.8
Tethys 10.6 71.8 29.1
Dione 10.8 97.2 52.6
Rhea 10.1 138.0 39.5
Titan 8.7 272.4 167.5
Hyperion 14.6 95.0 205.7
Iapetus 11.5 179.8 59.0
Phoebe 16.9 181.5 76.5
Cheers
Dennis