从天鹅座中的明亮恒星天津四往东北方向寻找，就能找到这一小片星云状光斑！

Look for a small nebular patch North-East of bright star Deneb in the constellation of Cygnus.

youdao

从天鹅座中的明亮恒星天津四往东北方向寻找，就能找到这一小片星云状光斑！

Look for a small nebular patch North-East of bright star Deneb in the constellation of Cygnus.

youdao