Infrared compact or IRc designations are objects in several astronomical catalogues. The first is a list of near-infrared sources in the NGC 6334molecular cloud.[1] There are also a series of infrared catalogues of objects in Orion.[2]
References
^Persi, P.; Ferrari-Toniolo, M. (1982). "Near-infrared sources in the NGC 6334 molecular cloud". Astronomy and Astrophysics. 112: 292. Bibcode:1982A&A...112..292P.