سديم القزحية (Arabic Wikipedia)

Analysis of information sources in references of the Wikipedia article "سديم القزحية" in Arabic language version.

refsWebsite

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1web.archive.org

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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

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

nasa.gov

apod.nasa.gov

Nemiroff، Robert؛ Bonnell, Jerry (4 نوفمبر 2004). "APOD: 2004 November 4 - NGC 7023: The Iris Nebula". APOD (NASA). مؤرشف من الأصل في 2018-03-03. اطلع عليه بتاريخ 2008-08-06.

web.archive.org

Nemiroff، Robert؛ Bonnell, Jerry (4 نوفمبر 2004). "APOD: 2004 November 4 - NGC 7023: The Iris Nebula". APOD (NASA). مؤرشف من الأصل في 2018-03-03. اطلع عليه بتاريخ 2008-08-06.

wikidata.org

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