Thực đơn
NGC_474 Tham khảoThực đơn
NGC_474 Tham khảoLiên quan
NGC 474 NGC 404 NGC 4274 NGC 4449 NGC 4494 NGC 4041 NGC 4473 NGC 4242 NGC 4477 NGC 4340Tài liệu tham khảo
WikiPedia: NGC_474 http://www.skyandtelescope.com/observing/sky-surpr... http://apod.nasa.gov/apod/ap110226.html https://apod.nasa.gov/apod/ap071008.html https://apod.nasa.gov/apod/ap140105.html https://apod.nasa.gov/apod/ap180206.html https://wis-tns.weizmann.ac.il/object/2017fgc