DeLisle Stewart discovered IC 1624 = DS 137 from a plate taken on 27 Nov 1900 at Harvard's Arequipa Station. He noted "vF, S, R." Some catalogues give IC 1624 as the designation to the nebulosity only and the cluster associated with it is called Kron 52. Here I have referred to IC 1624 as the name to the cluster, with Kron 52 being an alternate name.

400/500mm - 18" (7/6/02 - Magellan Observatory, Australia): at 171x and UHC, this is the smaller of a pair of nebulous clusters with NGC 395. It appeared about half the size of NGC 395, roughly 1' in diameter with a mottled appearance and no central condensation or resolution. A mag 13 star is close west with a mag 11 star 2' W (supergiant SK 118). A very small nebulous knot (SMC-N78C) was also noted ~2' SE. A large, scattered group of stars (OB-association) is superimposed on the field. Located 9' E of NGC 371 and 3.5' SSE of NGC 395.

Notes by Steve Gottlieb