Sh2-280 is a faint, diffuse emission nebula situated in constellation Monoceros. It is mainly an ionized hydrogen cloud. There is also a little oxygen around the bow-shock of the ionizing star at the center – HD46573. Sh2-280 is approximately 5,500 light-years away and near the Rosette Nebula.
This target sits very low in my southern sky. I imaged this over 4 nights in March 2025 using a Skywatcher Esprit 120ED telescope and an ASI2600MC camera. APT 4.62 – image acquisition and session control. Image calibrated, aligned, integrated and processed manually in PixInsight.
Acquisition details and annotated image here.
