NGC 1981 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 1981" in Polish language version.

Last modified: 10:52:00, 26 July 2026 (UTC)

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cseligman.com (Global: 1,720^th place; Polish: 239^th place)

Courtney Seligman: NGC 1981. [w:] Celestial Atlas [on-line]. [dostęp 2014-11-27]. (ang.).

F. F. S. Maia, W. J. B. Corradi, J. F. C. Santos Jr. Characterization and photometric membership of the open cluster NGC 1981. „Monthly Notices of the Royal Astronomical Society”. 407 (3), s. 1875-1886, 2010-09-21. DOI: 10.1111/j.1365-2966.2010.17034.x. (ang.).

Wilton Dias et al.: Catalog of Optically Visible Open Clusters and Candidates. Departamento de Astronomia, 2014-05-24. [dostęp 2014-11-27]. [zarchiwizowane z tego adresu (2025-05-11)].

Wilton Dias et al.: Catalog of Optically Visible Open Clusters and Candidates. Departamento de Astronomia, 2014-05-24. [dostęp 2014-11-27]. [zarchiwizowane z tego adresu (2025-05-11)].