"Results for NGC 6544". SIMBAD Astronomical Database. Retrieved 30 May 2013. Seligman, Courtney. "New General Catalogue objects: NGC 6500 - 6549". cseligman...

Cluster". NASA. Retrieved 10 March 2021. "New General Catalog Objects: NGC 6500 - 6549". cseligman.com. Retrieved 10 March 2021. "Photos". www.klima-luft...

The Little Gem Nebula or NGC 6818 is a planetary nebula located in the constellation of Sagittarius. It has magnitude 10 and oval diameter of 15 to 22...

NGC 6782 is a barred spiral galaxy located in the southern constellation of Pavo, at a distance of approximately 173 megalight-years from the Milky Way...

Located 55 arc minutes to the north of Pi Arae is the globular cluster NGC 6397. van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction"...

NGC 6509 is a galaxy in the New General Catalogue. It is located in the constellation Ophiuchus. It is a Sc type spiral galaxy. Simbad Astronomical Database...

2021). "A Middle Pleistocene Homo from Nesher Ramla, Israel". Science. 372 (6549): 1424–1428. Bibcode:2021Sci...372.1424H. doi:10.1126/science.abh3169. ISSN 0036-8075...