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HD 16641

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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
A spectrophotometric survey of stars along the Milky Way. IV In the present paper a catalogue of spectrophotometric quantities,spectral types, monochromatic magnitudes and colour equivalents is givenfor all stars brighter than the magnitude m4400 = 10.5 in aregion of the Milky Way in Perseus. No absorption is found for starscloser than about r = 100 pc. The absorbing clouds are situated atdistances closer than 1 kpc and at about 2.5 kpc in the local arm andthe Perseus arm, respectively. The space between the two arms is freefrom absorption. It is also concluded that the Perseus arm continuesbeyond l = 140 deg, containing not only hydrogen gas but also dust to atleast l = 150 deg), while the content of OB stars decreases abruptly atl = 140 deg.
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
Vitesses radiales dans 2 champs de petite latitude galactique. Not Available
Slit Spectra of Some Peculiar and Metallic-Line A Stars Not Available

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Osservazione e dati astrometrici

Costellazione:	Perseo
Ascensione retta:	02^h42^m15.44^s
Declinazione:	+56Â°33'55.7"
Magnitudine apparente:	8.632
Distanza:	757.576 parsec
Moto proprio RA:	19.1
Moto proprio Dec:	-13.1
B-T magnitude:	8.981
V-T magnitude:	8.661

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 16641
TYCHO-2 2000	TYC 3708-1387-1
USNO-A2.0	USNO-A2 1425-03762833
HIP	HIP 12624

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