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HD 220317


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Lists of photometric AM candidates
The Geneva photometric m parameter (Nicolet and Cramer, 1982) is used inorder to select Am photometric candidates from the Rufener (1981)catalogue. Two lists are given, the first containing field stars and thesecond cluster stars. According to the photometric criteria thediffusion process probably responsible for the Am phenomenon takes placerather quickly as Am candidates are present in young clusters. It isconfirmed that the phenomenon is enhanced by low rotational velocity andhigh metallicity. The age seems to slightly affect the Am phenomenon.

Properties of AM stars in the Geneva photometric system
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1980A&A....92..289H&db_key=AST

Multicolor photometry of metallic-line stars. III. A photometric catalogue
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1974RMxAA...1..175M&db_key=AST

Catalogue of AM stars with known spectral types
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1973A&AS...10..385H&db_key=AST

Classification des spectres de 112 d'étoiles A et F dont 89 d'étoiles AM
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....1....7B&db_key=AST

Slit Spectra of Some Peculiar and Metallic-Line A Stars
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Datos observacionales y astrométricos

Constelación:Pegaso
Ascensión Recta:23h22m41.57s
Declinación:+24°56'20.1"
Magnitud Aparente:9.048
Movimiento Propio en Ascensión Recta:1.8
Movimiento Propio en Declinación:5.4
B-T magnitude:9.28
V-T magnitude:9.068

Catálogos y designaciones:
Nombres Propios   (Edit)
HD 1989HD 220317
TYCHO-2 2000TYC 2241-1338-1
USNO-A2.0USNO-A2 1125-19784736
HIPHIP 115410
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