SH2-91

by Deepsky_Oldenburg

Objects in field: 12 Cyg, The star φ Cyg

Equipment: Sky-Watcher Esprit 150ED, ToupTek ATR2600M

Integration: 45h

I’ve been working on this object for a while now, and luckily the last few nights have been clear, so I’ve been able to gather some Ha images by moonlight. I’ve put together a 2-panel mosaic. So far, each panel has taken around 22.5 hours. Esprit150@810mm f5.4 with the 571M and Optolong 3nm filter.