The ring nebula and its outer layers of gas

On 06/23/2025 11:00 pm by Steven Bellavia | Website | Smithfield VA and Southold, NY

Ha and OIII data combined into an HOO palette, revealing the outer layers of a popular favorite, the ring nebula, M57

Apertura 6-inch Classic Cassegrain
ZWO ASI 294MM camera
Antlia Edge 4.5nm Ha and OIII filters
SkyWatcher EQ6R-Pro equatorial mount

combined two nights of Ha and OIII data for a total of 6 hours
processing PixInsight and Canon Digital Photo Professional