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HD 501


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Radial pulsation modes as a possible cause for the heterogeneity of the Delta Scuti stars
On the basis of observational data (Breger, 1979), a radial pulsationmode of 83 Delta Scuti stars is estimated in two ways. These stars canpulsate in four lowest modes - F, 1H, 2H, 3H - and, perhaps, in 4H and5H. An earlier suggestion that the apparent heterogeneity of theseobjects in both the period luminosity plane and the period-frequencydistribution may be explained by means of pulsations in various modes -is confirmed. Semiempirical period-luminosity relations for the fourlowest modes are derived and the semiempirical period ratios arecompared with the theoretical ones.

Computation of Elements of Eclipsing Binary Stars by High-Speed Computing Machines.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1962ApJS....7..351H&db_key=AST

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Kanatli At
Sað Açýklýk:00h09m33.03s
Yükselim:+19°53'37.0"
Görünürdeki Parlaklýk:9.195
özdevim Sað Açýklýk:5.4
özdevim Yükselim:4.1
B-T magnitude:9.495
V-T magnitude:9.22

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 501
TYCHO-2 2000TYC 1181-764-1
USNO-A2.0USNO-A2 1050-00052295
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