NGC 2857

{{Infobox galaxy
| name = NGC 2857
| image =
| caption = 史隆數位巡天拍攝的NGC 2857
| epoch = J2000
| constellation name = 大熊座
| ra =
| dec =
| h_radial_v = 4887 ± 7 km/s 。

參考資料
外部連結
*

• [https://ned.ipac.caltech.edu/level5/Arp/Arp_contents.html Full Arp Atlas]
• [http://ned.ipac.caltech.edu/level5/Arp/Arp1.html Halton Arp's image of Arp 1]
• [http://djm.cc/constellation.html Constellation Locator]
• [http://simbad.u-strasbg.fr/simbad/ SIMBAD Astronomical Database]
• [http://ned.ipac.caltech.edu/ NASA/IPAC Extragalactic Database]
• [http://www.astronomerstelegram.org/?read=4459 SN 2012fg detection announcement]