Based on a recessional velocity of 2020 km/sec, NGC 4250 is about 95 million light years away. Given that and its apparent size of 2.0 by 1.1 arcmin, it is about 55 thousand light years across. Its core is unusually bright compared to its disc, so it may be a starburst galaxy.

Below, a multispectral false-color image of NGC 4258 shows "anomalous" spiral arms with no counterpart in the visible spectrum, and no known explanation (hopefully, this is not due to an orientation error; but such mistakes have been known to happen). X-rays are shown in blue, visible light in yellow, infrared radiation in red, and radio emissions in purple. (Image Credits: X-ray: NASA/CXC/Univ. of Maryland/A.S. Wilson et al.; Optical: Palomar Observatory. DSS; IR:JPL-Caltech; VLA: NRAO/AUI/NSF/NASA)

Per Dreyer, NGC 4293 (= John Herschel's GC 2867, 1860 RA 12 14 08, NPD 70 50.5) is "faint, very large, extended, little brighter middle, mottled but not resolved". The position precesses to RA 12 21 13.4, Dec +18 22 52, within 0.2 arcmin of the center of the galaxy, so the identification is certain. Based on a recessional velocity of 895 km/sec, NGC 4293 is about 40 million light years away, in good agreement with redshift-independent distance estimates of 27 to 55 million light years. Given that and its apparent size of 5.6 by 2.6 arcmin, it is about 70 thousand light years across. The galaxy is listed in NED as a member of a radial-velocity based grouping, LGG 292.