Thực đơn
Arp 87Thực đơn
Arp 87Liên quan
ARPANET ARP spoofing Arp 147 Arpent Arpino Arpajon-sur-Cère (tổng) Arpheuilles-Saint-Priest Arpajon Arp 87 Arpad EloTài liệu tham khảo
WikiPedia: Arp 87 http://cseligman.com/text/atlas/ngc38.htm#3808 http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsear... http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsear... http://nedwww.ipac.caltech.edu/cgi-bin/nph-objsear... https://www.spacetelescope.org/images/heic0717a/