NGC 1820 (Arabic Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 1820" in Arabic language version.

refsWebsite

Global rank Arabic rank

18^th place

33^rd place

43^rd place

2^nd place

1,342^nd place

1,392^nd place

5^th place

4^th place

harvard.edu

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
Philibert Jacques Melotte (1915). "A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates" (PDF). Memoirs of the Royal Astronomical Society (بالإنجليزية). 60: 175–186. Bibcode:1915MmRAS..60..175M. ISSN:0369-1829. QID:Q28806590.

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
Philibert Jacques Melotte (1915). "A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates" (PDF). Memoirs of the Royal Astronomical Society (بالإنجليزية). 60: 175–186. Bibcode:1915MmRAS..60..175M. ISSN:0369-1829. QID:Q28806590.

u-strasbg.fr

vizier.u-strasbg.fr

VizieR (بالإنجليزية), QID:Q1662358

wikidata.org

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
Philibert Jacques Melotte (1915). "A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates" (PDF). Memoirs of the Royal Astronomical Society (بالإنجليزية). 60: 175–186. Bibcode:1915MmRAS..60..175M. ISSN:0369-1829. QID:Q28806590.

worldcat.org

Philibert Jacques Melotte (1915). "A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates" (PDF). Memoirs of the Royal Astronomical Society (بالإنجليزية). 60: 175–186. Bibcode:1915MmRAS..60..175M. ISSN:0369-1829. QID:Q28806590.