NGC 1981 (Arabic Wikipedia)

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

refsWebsite

Global rank Arabic rank

3web.archive.org

1^st place

2wikidata.org

43^rd place

2^nd place

2harvard.edu

18^th place

33^rd place

1u-strasbg.fr

1,342^nd place

1,392^nd place

1eyesonthesky.com

low place

1caltech.edu

887^th place

1,217^th place

1in-the-sky.org

low place

caltech.edu (Global: 887^th place; Arabic: 1,217^th place)

ned.ipac.caltech.edu

"NED results for object NGC 1981 *". NED. مؤرشف من الأصل في 2019-12-07. اطلع عليه بتاريخ 2017-11-27.

eyesonthesky.com (Global: low place; Arabic: low place)

"NGC1981: The often-overlooked open cluster in Orion". Eye on the sky. 22 ديسمبر 2013. مؤرشف من الأصل في 2017-12-06. اطلع عليه بتاريخ 2017-11-27.

harvard.edu (Global: 18^th place; Arabic: 33^rd place)

articles.adsabs.harvard.edu

Per Collinder (1931), On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters (PDF) (بالإنجليزية), vol. 2, p. 1, Bibcode:1931AnLun...2....1C, QID:Q28806527

ui.adsabs.harvard.edu

Per Collinder (1931), On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters (PDF) (بالإنجليزية), vol. 2, p. 1, Bibcode:1931AnLun...2....1C, QID:Q28806527

in-the-sky.org (Global: low place; Arabic: low place)

"The open cluster NGC 1981". In the Sky. مؤرشف من الأصل في 2017-12-01. اطلع عليه بتاريخ 2017-11-27.

u-strasbg.fr (Global: 1,342^nd place; Arabic: 1,392^nd place)

vizier.u-strasbg.fr

VizieR (بالإنجليزية), QID:Q1662358

web.archive.org (Global: 1^st place; Arabic: 1^st place)

"NGC1981: The often-overlooked open cluster in Orion". Eye on the sky. 22 ديسمبر 2013. مؤرشف من الأصل في 2017-12-06. اطلع عليه بتاريخ 2017-11-27.
"NED results for object NGC 1981 *". NED. مؤرشف من الأصل في 2019-12-07. اطلع عليه بتاريخ 2017-11-27.
"The open cluster NGC 1981". In the Sky. مؤرشف من الأصل في 2017-12-01. اطلع عليه بتاريخ 2017-11-27.

wikidata.org (Global: 43^rd place; Arabic: 2^nd place)

VizieR (بالإنجليزية), QID:Q1662358
Per Collinder (1931), On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters (PDF) (بالإنجليزية), vol. 2, p. 1, Bibcode:1931AnLun...2....1C, QID:Q28806527