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HD 195991


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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

Catalogue et bibliographie des étoiles A à spectre particulier - Deuxième supplément
Not Available

Thirty-seven New Peculiar and Metallic-Line A Stars
Not Available

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Сазвежђа:Лабуд
Ректацензија:20h33m15.11s
Deклинација:+35°59'21.9"
Apparent магнитуда:8.866
Даљина:301.205 parsecs
Proper motion RA:18.8
Proper motion Dec:16.7
B-T magnitude:9.214
V-T magnitude:8.895

Каталог и designations:
Proper имена   (Edit)
HD 1989HD 195991
TYCHO-2 2000TYC 2698-1252-1
USNO-A2.0USNO-A2 1200-15314505
HIPHIP 101426
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