NGC 721 is a barred spiral galaxy located in the constellation Andromeda about 250 million light years from the Milky Way. It was discovered by the Prussian astronomer Heinrich d'Arrest in …

ngc 721 是仙女座的一个星系。 维基共享资源上的相关多媒体资源：ngc 721. ned – ngc 721; seds – ngc 721; simbad – ngc 721; vizier – ngc 721

NGC 721 是 仙女座 的一個 星系。

NGC 721 是 仙女座 的一個 星系。 维基共享资源 上的相關多媒體資源： NGC 721.

NGC 721 is a Spiral Galaxy in the Andromeda constellation. NGC 721 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its …

NGC 721 is a Barred Spiral Galaxy located in the constellation of Andromeda in the northern hemisphere. NGC 721's distance from Earth is 222,882,222.26 light years. NGC 721 is called …

NGC 721 is a barred spiral galaxy in the Andromeda constellation. It is about 256 million light-years away from the Milky Way.

NGC 721 是仙女座的一个星系。

NGC 721 . NGC 721 is a spiral galaxy located in the constellation Andromeda. Some key stats include:

NGC 721 Galaxy in Andromeda Dreyer's description: eF, pL . Cross Identifications: GC 433. d'A 30.