[John Hothersall]

SPX350 F9.1, 2x PowerMate, ASI290 uncooled, Baader HaRGB filters, 0.19"/pixel.

Managed to capture really good detail with no breeze and good seeing. I used 0.25 sec exposures about 1000-750 each in HaRGB with low medium and high gain settings no darks used.

A comparison with an attempt in 2011 using GStar-Ex CCD shows the improved technology of new back illuminated 16bit ASI290 CMOS vs old front illum 8bit CCD. The GIF shows a possible expansion of the cloud around Eta Carina over 7 years, not sure if this is due to a brighter more detailed result or actual expansion?

I put together a '3D pair' image where you cross your eyes to get a single 3D image, purely an artistic effect.

Regards, John.