C. Moni Bidin et al. Not an open cluster after all: the NGC 6863 asterism in Aquila. „Astronomy & Astrophysics”. 510 (A44), 2010. DOI: 10.1051/0004-6361/200912761. (ang.).
Harold G. Corwin Jr.: NGC 6863. [w:] Notes on the NGC objects, particularly those missing, misidentified, or otherwise unusual [on-line]. 2017-06-20. [dostęp 2017-10-23]. (ang.).