Cygnus OB7

{{short description|Very loose grouping of stars in the Cygnus constellation}}

{{Infobox stellar association

| name = Cygnus OB7

| image=

| caption=

| credit =

| epoch = J2000.0

| ra = {{RA|21|08|00}}{{cite web

| title=SIMBAD Astronomical Database

| work=Results for Ass Cygnus OB7

| url=http://simbad.u-strasbg.fr/Simbad

| access-date=February 16, 2015}}

| dec = {{DEC|47|36|00}}

| constellation = Cygnus

| dist_ly = 2,050 ly

| dist_pc = 630 pc{{cite journal|arxiv=2006.14649|doi=10.1007/s10509-020-03827-0|title=Distance scale for high-luminosity stars in OB associations and in field with Gaia DR2. Spurious systematic motions|year=2020|last1=Melnik|first1=A. M.|last2=Dambis|first2=A. K.|journal=Astrophysics and Space Science|volume=365|issue=7|page=112 |bibcode=2020Ap&SS.365..112M |s2cid=220128144}}

| age_myr =

| notes =

}}

Cygnus OB7 is an OB association in the giant Cygnus molecular cloud complex, which also contains the star-forming regions Cygnus X, the North America Nebula and the Pelican Nebula. The Northern Coalsack Nebula of the Cygnus Rift lies in the foreground of this region. The molecular cloud has a large angular size of ~4° × 7°.{{cite journal | last1=Dobashi | first1=Kazuhito | last2=Matsumoto | first2=Tomoaki | last3=Shimoikura | first3=Tomomi | last4=Saito | first4=Hiro | last5=Akisato | first5=Ko | last6=Ohashi | first6=Kenjiro | last7=Nakagomi | first7=Keisuke | title=Colliding Filaments and a Massive Dense Core in the Cygnus Ob 7 Molecular Cloud | journal=The Astrophysical Journal | publisher=American Astronomical Society | volume=797 | issue=1 | date=2014-11-24 | issn=1538-4357 | doi=10.1088/0004-637x/797/1/58 | page=58| arxiv=1411.0942 | bibcode=2014ApJ...797...58D | s2cid=118369651 }}