NGC 1981 (Czech Wikipedia)

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

refsWebsite

Global rank Czech rank

18^th place

99^th place

69^th place

196^th place

1^st place

1,342^nd place

1,190^th place

2^nd place

4^th place

low place

arxiv.org

DIAS, W. S.; ALESSI, B. S.; MOITINHO, A., et al. New catalogue of optically visible open clusters and candidates. S. 871–873. Astronomy and Astrophysics [online]. Červenec 2002 [cit. 2017-11-29]. Roč. 389, s. 871–873. Dostupné online. arXiv astro-ph/0203351. DOI 10.1051/0004-6361:20020668. Bibcode 2002A&A...389..871D. (anglicky)
BROWN, A. G. A.; DE GEUS, E. J.; DE ZEEUW, P. T. The Orion OB1 association. 1: Stellar content. S. 101–120. Astronomy and Astrophysics [online]. Září 1994 [cit. 2017-11-30]. Roč. 289, s. 101–120. Dostupné online. arXiv astro-ph/9403051. Bibcode 1994A&A...289..101B. (anglicky)

SELIGMAN, Courtney. Celestial Atlas: NGC 1981 (= OCl 525) [online]. [cit. 2017-11-29]. Dostupné online. (anglicky)

DIAS, W. S.; ALESSI, B. S.; MOITINHO, A., et al. New catalogue of optically visible open clusters and candidates. S. 871–873. Astronomy and Astrophysics [online]. Červenec 2002 [cit. 2017-11-29]. Roč. 389, s. 871–873. Dostupné online. arXiv astro-ph/0203351. DOI 10.1051/0004-6361:20020668. Bibcode 2002A&A...389..871D. (anglicky)

DIAS, W. S.; ALESSI, B. S.; MOITINHO, A., et al. New catalogue of optically visible open clusters and candidates. S. 871–873. Astronomy and Astrophysics [online]. Červenec 2002 [cit. 2017-11-29]. Roč. 389, s. 871–873. Dostupné online. arXiv astro-ph/0203351. DOI 10.1051/0004-6361:20020668. Bibcode 2002A&A...389..871D. (anglicky)
COLLINDER, Per. On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters. S. B1-B46. Annals of the Observatory of Lund [online]. 1931 [cit. 2017-11-29]. Čís. 2, s. B1-B46. Dostupné online. Bibcode 1931AnLun...2....1C. (anglicky)
BROWN, A. G. A.; DE GEUS, E. J.; DE ZEEUW, P. T. The Orion OB1 association. 1: Stellar content. S. 101–120. Astronomy and Astrophysics [online]. Září 1994 [cit. 2017-11-30]. Roč. 289, s. 101–120. Dostupné online. arXiv astro-ph/9403051. Bibcode 1994A&A...289..101B. (anglicky)
BLAAUW, Adriaan. The Orion OB1 association. 1: Stellar content. S. 125. OB Associations and the Fossil Record of Star Formation [online]. 1991 [cit. 2017-11-30]. Roč. 342, s. 125. Dostupné online. Bibcode 1991ASIC..342..125B. (anglicky)

Per Collinder: On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters. 1931. Dostupné online.

SIMBAD Astronomical Database: Results for NGC 1981 [online]. [cit. 2017-11-29]. Dostupné online. (anglicky)

SEDS Messier Objects Database: Revised NGC Data for NGC 1981 [online]. [cit. 2017-11-29]. Dostupné v archivu pořízeném dne 2015-09-19. (anglicky)