Stephane Javelle discovered IC 4560 = J. 3-1374, along with IC 4563, on 24 Jul 1903 with the 30-inch refractor at the Nice Observatory. His position is erroneous due to confusion with the offset star (using different stars for RA and Dec). See Corwin's notes regarding Javelle's error in reducing his position.

600/800mm - 24" (7/14/15): extremely faint, very small, elongated 3:2 E-W, ~9"x6", low surface brightness. Situated just 1.2' SW of mag 7.6 HD 139323 and 2' NW of mag 6.8 HD 139341 (1.1" pair)! The bright stars detract from viewing. Faintest in a trio with NGC 5966 2.7' S and IC 4563 2.1' NE (just east of the mag 7.6 star.

Notes by Steve Gottlieb