The Great Orion Nebula

5 Mar 2025, 00:36 UT; Spotsylvania, Virginia USA. Bortle 4.5 zone.

 

Celestron C8 SCT at f/7. Orion Atlas AZ/EQ-G mount. QHY294M Pro monochrome camera, bin 1x1, exposure 12s, stack of 300 frames, no filter, no guiding, no calibration frames, sensor 0°C.

Captured in Sharpcap Pro. Processed in PixInsight.

 

Capture notes: First light after installation of Starizona SCT 4 focal reducer/corrector. I noticed visibly improved off-axis star shapes, and significant improvement in autofocus performance in NINA via Hocus Focus.

 

Clouds: partly cloudy

Transparency: below average

Seeing: poor

 

Image scale: 0.65 "/px

 

Done