NGC 6738

{{Short description|Asterism in the constellation Aquila}}

{{Infobox open cluster

| name = NGC 6738

| image =

| caption =

| epoch = J2000

| class = Asterism / Open cluster (disputed)

| ra = {{RA|19|01|1(8.0)}}

| dec = {{DEC|+11|37|(00)}}

| dist_ly = {{convert|2283|ly|pc|abbr=on|lk=on|0}}

| appmag_v = 8.3

| size_v = 15.0′

| mass_kg =

| mass_msol =

| radius_ly =

| v_hb =

| age =

| constellation = Aquila

| notes =

| names = Cr 396, C1859+115, OCL 101.0, KPR2004b. 459

}}

NGC 6738 is an astronomical feature that is catalogued as an NGC object. Although listed as an open cluster in some astronomical databases, it may be merely an asterism; a 2003 paper in the journal Astronomy and Astrophysics describes it as being an "apparent concentration of a few bright stars on patchy background absorption".{{Cite journal | last1 = Boeche | first1 = C. | last2 = Barbon | first2 = R. | last3 = Henden | first3 = A. | last4 = Munari | first4 = U. | last5 = Agnolin | first5 = P. | title = NGC 6738: Not a real open cluster | doi = 10.1051/0004-6361:20030834 | journal = Astronomy and Astrophysics | volume = 406 | issue = 3 | pages = 893–898 | year = 2003 |arxiv = astro-ph/0306093 |bibcode = 2003A&A...406..893B | s2cid = 1433681 }}{{cite web |url=http://www.docdb.net/show_object.php?id=ngc_6738 |title=DOCdb - NGC 6738 |publisher=Deep Sky Observer's Companion | access-date=2012-12-17}}