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HD 97457

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The Abundance of CN. Calcium and Heavy Elements in High Velocity Stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1997AJ....114..825E&db_key=AST
Star Streams and Galactic Structure Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1996AJ....112.1595E&db_key=AST
Ca II H and K Filter Photometry on the UVBY System. II. The Catalog of Observations Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1995AJ....109.2828T&db_key=AST
HR 1614 and the dissolution of a supercluster A few main-sequence members of the HR 1614 supercluster have been foundwithin 40 parsecs of the sun. The convergent point of the proper motionsis (A,D) = (8.38 h - 58.7 deg) and V(TOT) = 59.0 km/s. Thirty-ninemembers of HR 1614 group, with mean V = 58.4 km/s, have been found nearthe sun as well as nineteen red giants within 200 parsecs. Both thesupercluster and the group members have Hyades abundance of heavyelements but CN strengths equalled by less than five percent of thestars near the sun. The age of the supercluster and group stars is nearthat of those in the cluster M67, 5 x 10 exp 9 yr on the basis of modelswithout convective overshoot or 6.3 x 10 exp 9 yr for models withovershoot. The stellar density near the sun is similar for both Hyadessupercluster and the combined HR 1614 supercluster and group members.
Binary-star measurements carried out at PIC DU Midi and at Nice Data on 219 measurements of 103 close binaries observed with the 2mtelescope at Pic du Midi are presented. Also presented are data on 230measurements of 126 binaries observed with the 74 cm refractor of theNice Observatory.
Large and kinematically unbiased samples of G- and K-type stars. V - Evolved stars in the selected areas at + 15-deg declination Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1990PASP..102..242E&db_key=AST
Measurements of double stars made at Nice Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975A&AS...20..391C&db_key=AST
Mesures d'étoiles doubles faites à Nice Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972A&AS....6..185C&db_key=AST
La recherche,d'etoiles doubles. SA motivation. Not Available
Photoelectric radial velocities. IV. 528 7 to 10 mag stars in the +15degree selected areas. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971MNRAS.155....1G&db_key=AST
Étoiles doubles nouvelles (4^éme série) découvertes à Nice avec la lunette de 50 centimètres Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1970A&AS....1..105C&db_key=AST

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Pozíciós és asztrometriai adatok

Csillagkép:	Oroszlán
Rektaszcenzió:	11^h13^m04.52^s
Deklináció:	+16Â°46'07.9"
Vizuális fényesség:	9.692
RA sajátmozgás:	39.8
Dec sajátmozgás:	-114
B-T magnitude:	10.761
V-T magnitude:	9.781

Katalógusok és elnevezések:

Megfelelő nevek	(Edit)
HD 1989	HD 97457
TYCHO-2 2000	TYC 1437-2725-1
USNO-A2.0	USNO-A2 1050-06452702
HIP	HIP 54792

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