NGC 660 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 660" in Chinese language version.

refsWebsite

Global rank Chinese rank

7web.archive.org

1^st place

1^st place

887^th place

966^th place

1,342^nd place

855^th place

75^th place

140^th place

low place

low place

1spacetelescope.org

8,860^th place

6,987^th place

low place

low place

1oxfordjournals.org

1,389^th place

860^th place

caltech.edu

ned.ipac.caltech.edu

NGC 0660. NASA/IPAC Extragalactic Database. [20 January 2015]. （原始内容存档于2019-02-17）.

nasa.gov

apod.nasa.gov

Robert Nemiroff & Jerry Bonnell. Polar Ring Galaxy NGC 660. Astronomy Picture of the Day. NASA. 8 November 2014 [2015-01-20]. （原始内容存档于2015-01-21）.

noao.edu

NGC 660. National Optical Astronomy Observatory. [2015-01-20]. （原始内容存档于2015-01-21）.

oxfordjournals.org

mnras.oxfordjournals.org

Monthly Notices of the Royal Astronomical Society, Volume 452, Issue 1, p.1081-1088. [2015-08-27]. （原始内容存档于2019-10-18）.

science20.com

NGC 660 And A Rare Polar-Ring Galaxy. Science 2.0. 18 October 2012 [2015-01-20]. （原始内容存档于2015-01-21）.

spacetelescope.org

Hubble Space Telescope. A bizarre cosmic rarity: NGC 660. ESA & NASA. ESA. [2015-01-20]. （原始内容存档于2018-08-09）.

u-strasbg.fr

simbad.u-strasbg.fr

NGC 660 -- LINER-type Active Galaxy Nucleus. SIMBAD. [20 January 2015]. （原始内容存档于2020-11-25）.

web.archive.org

NGC 0660. NASA/IPAC Extragalactic Database. [20 January 2015]. （原始内容存档于2019-02-17）.
NGC 660 -- LINER-type Active Galaxy Nucleus. SIMBAD. [20 January 2015]. （原始内容存档于2020-11-25）.
Robert Nemiroff & Jerry Bonnell. Polar Ring Galaxy NGC 660. Astronomy Picture of the Day. NASA. 8 November 2014 [2015-01-20]. （原始内容存档于2015-01-21）.
NGC 660 And A Rare Polar-Ring Galaxy. Science 2.0. 18 October 2012 [2015-01-20]. （原始内容存档于2015-01-21）.
Hubble Space Telescope. A bizarre cosmic rarity: NGC 660. ESA & NASA. ESA. [2015-01-20]. （原始内容存档于2018-08-09）.
NGC 660. National Optical Astronomy Observatory. [2015-01-20]. （原始内容存档于2015-01-21）.
Monthly Notices of the Royal Astronomical Society, Volume 452, Issue 1, p.1081-1088. [2015-08-27]. （原始内容存档于2019-10-18）.