NGC 2227 (Chinese Wikipedia)
Analysis of information sources in references of the Wikipedia article "NGC 2227" in Chinese language version.
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arxiv.org
- Tully, R. Brent; et al. Cosmicflows-2: The Data. The Astronomical Journal. 2013, 146 (4). Bibcode:2013AJ....146...86T. arXiv:1307.7213
. doi:10.1088/0004-6256/146/4/86.
caltech.edu
ned.ipac.caltech.edu
- Results for object NGC 2227 (NGC 2227). NASA/IPAC Extragalactic Database. California Institute of Technology. [2021-02-13]. （原始内容存档于2021-06-12）.
cseligman.com
- Seligman, Courtney. New General Catalogue objects: NGC 2200 - 2249. cseligman.com. [2021-02-13]. （原始内容存档于2016-02-20）.
doi.org
- Skrutskie, M. The Two Micron All Sky Survey (2MASS). The Astronomical Journal. 2006, 131 (2): 1163–1183 [2021-06-12]. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. （原始内容存档于2019-09-13）.
- Tully, R. Brent; et al. Cosmicflows-2: The Data. The Astronomical Journal. 2013, 146 (4). Bibcode:2013AJ....146...86T. arXiv:1307.7213 . doi:10.1088/0004-6256/146/4/86.
harvard.edu
ui.adsabs.harvard.edu
- Skrutskie, M. The Two Micron All Sky Survey (2MASS). The Astronomical Journal. 2006, 131 (2): 1163–1183 [2021-06-12]. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. （原始内容存档于2019-09-13）.
- Tully, R. Brent; et al. Cosmicflows-2: The Data. The Astronomical Journal. 2013, 146 (4). Bibcode:2013AJ....146...86T. arXiv:1307.7213 . doi:10.1088/0004-6256/146/4/86.
adsabs.harvard.edu
- Skrutskie, M. The Two Micron All Sky Survey (2MASS). The Astronomical Journal. 2006, 131 (2): 1163–1183 [2021-06-12]. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. （原始内容存档于2019-09-13）.
u-strasbg.fr
simbad.u-strasbg.fr
- NGC 2227. SIMBAD. 斯特拉斯堡天文資料中心. [2021-02-13].
- SN 1986O. SIMBAD. 斯特拉斯堡天文資料中心. [2021-02-13].
univ-lyon1.fr
leda.univ-lyon1.fr
- Search specification: NGC 2227. HyperLeda. Université Claude Bernard Lyon 1. [2021-02-13]. （原始内容存档于2021-06-12）.
web.archive.org
- Skrutskie, M. The Two Micron All Sky Survey (2MASS). The Astronomical Journal. 2006, 131 (2): 1163–1183 [2021-06-12]. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. （原始内容存档于2019-09-13）.
- Search specification: NGC 2227. HyperLeda. Université Claude Bernard Lyon 1. [2021-02-13]. （原始内容存档于2021-06-12）.
- Results for object NGC 2227 (NGC 2227). NASA/IPAC Extragalactic Database. California Institute of Technology. [2021-02-13]. （原始内容存档于2021-06-12）.
- Seligman, Courtney. New General Catalogue objects: NGC 2200 - 2249. cseligman.com. [2021-02-13]. （原始内容存档于2016-02-20）.