Hoinga SNR as seen in the ROSAT all-sky survey. Photons to produce this image have been selected from within the 0.1–0.7 keV energy band. A Gaussian smoothing filter with x,y-σ = 3 image pixel was applied in order to enhance the visibility of the diffuse emission. The gray scale colors aredistributed so that white corresponds to a pixel intensity value of 0.09 and black to 0.45 cts pixel⁻¹. The image is vignetting and deadtime corrected though no exposure correction was applied. The inset in the lower right corner showsa 40′× 40′ zoom to the region of the X-ray sources located slightly to east of the remnant’s geometrical centre.