30 Leonis Minors is listed in SIMBAD as being a "peculiar" star. This is due to the unusual chemistry of the star, which results in it's odd spectral type. This star was first noted in the 1911 publication "The radial velocities of twenty-six stars." (Jordan F. C.).
The bright orange star to the right of, and slightly below 30 Lmi is 28 Leonis Minoris. This is an oranged-hued giant star of spectral type K1III.
The star is moderately bright at magnitude 5.5 and is 146.5631 parsecs (478 light years) away.
Similar to 27 LMi shown below, 28 Leonis Minoris is also a suitable calibration star. "A catalog of bright calibrator stars for 200-m baseline near-infrared stellar interferometry. (2005, Merand A., Borde P. and Coude du Foresto V.)" includes this star along with 947 others that are useable for calibrating near-infrared interferometry equipment.
The SIMBAD database shows that UU LMi is a long period variable star with a spectral type of M6III. It is magnitude 7.03 and binoculars are necessary to view this star.
HD 90024 is a magnitude 7.08 K0 type star and is even less visible than UU LMi. As we can see from the image, these two stars shine with a similar orange hue and at a similar brightness.