NGC 1980 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 1980" in Chinese language version.

refsWebsite

Global rank Chinese rank

6web.archive.org

1^st place

1^st place

887^th place

966^th place

1in-the-sky.org

low place

low place

low place

low place

5,388^th place

4,207^th place

1,342^nd place

855^th place

1books.google.com

3^rd place

8^th place

low place

low place

936^th place

1,099^th place

books.google.com

O'Meara, Stephen James. Deep-Sky Companions: Hidden Treasures. Cambridge University Press. 2007: 155–157. ISBN 9780521837040.

caltech.edu

ned.ipac.caltech.edu

NED results for object NGC 1980*. NED. [27 November 2017]. （原始内容存档于2021-12-04）.

cseligman.com

NGC 1980 (= OCL 529), the ί Orionis Nebula. cseligman. [27 November 2017]. （原始内容存档于2018-10-13）.

in-the-sky.org

The open cluster NGC 1980. In the Sky. [27 November 2017]. （原始内容存档于2017-12-01）.

seds.org

spider.seds.org

Object: NGC 1980 (*). SEDS. [27 November 2017]. （原始内容存档于2017-03-25）.

sim-id

ngc 1980 请检查|url=值 (帮助). sim-id. [2020-06-07]. ^{[失效連結]}

space.com

Star Cluster Near Orion Nebula Revealed in Telescope Views. Space.com. November 14, 2012 [27 November 2017]. （原始内容存档于2021-12-04）.

u-strasbg.fr

simbad.u-strasbg.fr

NGc 1980. sim-id. [2020-06-10]. （原始内容存档于2021-12-04）.

web.archive.org

NED results for object NGC 1980*. NED. [27 November 2017]. （原始内容存档于2021-12-04）.
The open cluster NGC 1980. In the Sky. [27 November 2017]. （原始内容存档于2017-12-01）.
Object: NGC 1980 (*). SEDS. [27 November 2017]. （原始内容存档于2017-03-25）.
NGc 1980. sim-id. [2020-06-10]. （原始内容存档于2021-12-04）.
NGC 1980 (= OCL 529), the ί Orionis Nebula. cseligman. [27 November 2017]. （原始内容存档于2018-10-13）.
Star Cluster Near Orion Nebula Revealed in Telescope Views. Space.com. November 14, 2012 [27 November 2017]. （原始内容存档于2021-12-04）.