IC4592 nota come "Testa di Cavallo Blu" è una bella nebulosa a riflessione visibile nella parte settentrionale della costellazione dello Scorpione.

- Date / Location :	16 & 17/05/2015 from Tivoli Southern Sky Guest Farm "Namibia"
- Lens / Camera :	Zeiss Apo Sonnar T* 135mm f/2 - Canon EOS 60D CDS (Baader Modified)
- Mount / Guide :	Vixen Atlux - Unguided
- Exposure Time :	Exposure of 1,5,8 Min. at f/4 (6h 15m Total) @ 1600 Iso. No Dark, 40 Flat
- Processing :	Image Plus (Calibration), Registar (Alignment), Photoshop, Image Plus, Nik Collection (Processing)
- Note :	Excellent Trasparency - Temp +12°C - SQM-L 21,79/21,99 The yellow halo in the center left is the bright reflection of Saturn just out the image.