Tel
☀12.7mag
Ø 84'' / 66''

2MASX J20062917-4819434 appeared extremely faint, round, perhaps 20" diameter and formed the northern vertex of a triangle with IC 4943 2.8' S and a mag 10.3 star 3.4' ESE.

Pietro Baracchi discovered IC 4943, along with nearby 2MASX J20062917-4819434, on 5 Oct 1885 while observing the Telescopium Group with the Great Melbourne Telescope. He wrote "D [IC 4943] is a little brighter than C [2MASX J20062917-4819434] but still pretty faint. It is very small and gradually pmbM. Looks like a diffused faint nebulous star." His sketch, which includes a nearby mag 10.3 star along with several additional fainter stars, perfectly matches the field surrounding IC 4943. The discovery was never announced.

Lewis Swift independently discovered IC 4943 = Sw. XI-188 on 8 Jul 1897 and recorded "eeeF; pS; R; F * near n; ee diff; p of 2 [with IC 4949 = NGC 6861]." His position was 3.5' too far southwest, but a mag 13 star is close north, confirming this identification. Swift was credited with the discovery in the IC.

400/500mm - 18" (7/10/02 - Magellan Observatory, Australia): At 128x, this member of the Telescopium Group = ACO S851 appeared faint, small, round, 25" diameter. A mag 12.8 star lies 0.9' N of center. Located 8.5' W of NGC 6861 (second brightest of four in field). Forms the southern vertex of a triangle with an extremely faint anonymous galaxy (2MASX J20062917-4819434) 2.8' N and a mag 10 star 3.8' NE.

Notes by Steve Gottlieb