FS-128 (ag, ST-4)
ST-10XME LRGB 15 minutes each
ST-2000XM Lum 15 minutes each (2006 data)
NGC 7538 is a very active complex star burst
region. Formaldehyde, methanol and water masers have been detected within
the nebula. The nebula contains a massive O type young stellar object (YSO)
with a circum-stellar disk along with many other YSO's and proto stars.