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- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 abstract "Catalog of 5,268 Standard Stars Based on the Normal System N30 is the 1952 auxiliary star catalogue created by Herbert Rollo Morgan to address proper motion inaccuracies in 19th century observations by converting contemporary catalogues from a mean epoch around 1900 (±0.1 yr) to epoch and equinox 1950.0. However, the positions were derived from more than 70 recent catalogs with epochs of observation between 1917 and 1949. The N30 system is independent from any other astrometric system. Independent proper motions were determined by comparing the 1930 normal positions with the normal positions at the mean epoch, 30 years earlier, in the Albany General Catalogue, corrected by Morgan in 1948. Its primary use is the incorporation of 19th century astronomical data into modern research, and includes Harvard photometric magnitude, Henry Draper (HD) spectral type, and proper motion.".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageExternalLink 1080.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageExternalLink N30.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageID "21247683".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageLength "3150".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageOutDegree "16".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageRevisionID "643825729".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Albany_General_Catalogue.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Apparent_magnitude.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Astrometry.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Astronomy.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Category:Astronomical_catalogues_of_stars.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Epoch_(astronomy).
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Equinox.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Henry_Draper_Catalogue.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Herbert_Rollo_Morgan.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink List_of_astronomical_catalogues.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Photometry_(astronomy).
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Proper_motion.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLink Star_catalogue.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLinkText "Catalog of 5,268 Standard Stars Based on the Normal System N30".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageWikiLinkText "N30".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageUsesTemplate Template:Astronomical-catalogue-stub.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageUsesTemplate Template:Reflist.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wikiPageUsesTemplate Template:Star-stub.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 subject Category:Astronomical_catalogues_of_stars.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 hypernym Catalogue.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 type CelestialBody.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 type Place.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 type Star.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 type Work.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 type Catalogue.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 type Location.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 type Place.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 type Thing.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 comment "Catalog of 5,268 Standard Stars Based on the Normal System N30 is the 1952 auxiliary star catalogue created by Herbert Rollo Morgan to address proper motion inaccuracies in 19th century observations by converting contemporary catalogues from a mean epoch around 1900 (±0.1 yr) to epoch and equinox 1950.0. However, the positions were derived from more than 70 recent catalogs with epochs of observation between 1917 and 1949. The N30 system is independent from any other astrometric system.".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 label "Catalog of 5,268 Standard Stars Based on the Normal System N30".
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 sameAs Q5051307.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 sameAs m.05b_l91.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 sameAs Q5051307.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 wasDerivedFrom Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30?oldid=643825729.
- Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30 isPrimaryTopicOf Catalog_of_5,268_Standard_Stars_Based_on_the_Normal_System_N30.