Thực đơn
NGC_489 Liên kết ngoàiThực đơn
NGC_489 Liên kết ngoàiLiên quan
NGC 489 NGC 4889 NGC 4993 NGC 4298 NGC 4848 NGC 4494 NGC 4293 NGC 499 NGC 4596 NGC 495Tài liệu tham khảo
WikiPedia: NGC_489 http://cseligman.com/text/atlas/ngc4a.htm#480 http://nedwww.ipac.caltech.edu/ //arxiv.org/abs/astro-ph/0604020 //doi.org/10.1111%2Fj.1365-2966.2006.10307.x https://dso-browser.com/deep-sky/1378/ngc-489/gala... https://ned.ipac.caltech.edu/cgi-bin/objsearch?obj... https://ui.adsabs.harvard.edu/abs/2006MNRAS.369..3...