NGC 6845B required averted vision and appeared extremely faint and small, round, 0.3' diameter, very low surface brightness. NGC 6845C appeared very faint, small, very elongated 4:1 NW-SE, 0.6'x0.15'. On the DSS image, faint tidal plumes appear to connect NGC 6845A with this companion.

John Herschel discovered NGC 6845 = h3803 on 7 Jul 1834 (sweep 467) and recorded "eF; lE; glbM; 30"." In a second observation he logged "vF; R; bM; 15". Found and viewed by the place of sweep 467." This is a compact interacting group of four galaxies (Klemola 30) and RC3 identifies the brightest member as NGC 6845A.

The entire quartet was found during an examination of Bruce plates taken at Arequipa, Peru between 1908 and 1913. The individual members were catalogued in a list by Solon Bailey of 1659 new nebulae in the 1913 Annals of the Astronomical Observatory of Harvard College, Vol. 72.

400/500mm - 18" (7/10/02 - Magellan Observatory, Australia): this is the brightest component of a compact interacting quartet. At 128x it appeared fairly faint, fairly small, oval 3:2 SSW-NNE, 1.0'x0.7', very weak concentration. Two companions are resolved - NGC 6845B at 1.4' NE (at the end of a long tidal tail) and NGC 6845C at 0.8' SW.

600/800mm - 25" (10/21/17 - OzSky): at 244x and 397x; NGC 6845A is the largest member in this compact interacting quartet, in a southwest/northeast string. It appeared moderately bright, elongated ~4:3, only a broad weak concentration. The shape was noticeably curved or irregular on the southwest side. Images show this is the root and beginning of a tidal arm that curves east and connects to NGC 6845B. Located 9.6' SE of mag 8.8 HD 189059.

NGC 6845B, just 1.4' NE, appeared very faint, very small, slightly elongated, 15"-20" diameter. NGC 6845C, centered 0.9' SSW, appeared fairly faint, fairly small, very elongated 4:1 NW-SE, 40"x10", small bright core, fairly high surface brightness (highest of the quartet). NGC 6845D, 1.8' SW, appeared extremely faint, elongated NNW-SSE, ~15'x10" NNW-SSE, requires averted.

Notes by Steve Gottlieb