Lewis Swift discovered IC 1667 = Sw. XI-16 on 6 Oct 1896 and reported "eF, pS, R, no * near, 8m * in field nf". There is nothing near his position. MCG suggests MCG -03-4-039 = IC 1667. This galaxy is 1 min of time east and 3.5' north of Swift's position, though there is a mag 8.4 star 11' ENE that would have been in Swift's field. So, despite the poor position (more common in his later years) and no mention of IC 93 = IC 1671, which he "discovered" twice and lies only 5' ESE, MCG -03-4-039 is a reasonable candidate.

400/500mm - 18" (12/17/11): extremely faint, small, round, 20"-24" diameter, very low surface brightness. Required averted vision to glimpse a few times, but confirmed. The IC identification is uncertain due to a poor position by Swift.

18" (12/18/06): extremely faint, small, round, 0.4' diameter. Appears as a very low surface brightness hazy spot without concentration. Only visible intermittently with averted vision. Located 4.8' W of brighter IC 93. The B magnitude of 14.5 appears too bright (LEDA gives 15.3).

Notes by Steve Gottlieb