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HD 169888


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A catalogue of eclipsing variables
A new catalogue of 6330 eclipsing variable stars is presented. Thecatalogue was developed from the General Catalogue of Variable Stars(GCVS) and its textual remarks by including recently publishedinformation about classification of 843 systems and making correspondingcorrections of GCVS data. The catalogue1 represents thelargest list of eclipsing binaries classified from observations.

50 New Eccentric Eclipsing Binaries Found in the ASAS, Hipparcos and NSVS Databases
This research presents 50 new eccentric binaries binaries found with thehelp of the NSVS, Hipparcos and ASAS-3 databases.

The 74th Special Name-list of Variable Stars
We present the Name-list introducing GCVS names for 3153 variable starsdiscovered by the Hipparcos mission.

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Membro dei seguenti gruppi:

Osservazione e dati astrometrici

Costellazione:Ercole
Ascensione retta:18h25m56.71s
Declinazione:+21°36'21.4"
Magnitudine apparente:7.688
Distanza:254.453 parsec
Moto proprio RA:-0.3
Moto proprio Dec:20.4
B-T magnitude:7.95
V-T magnitude:7.71

Cataloghi e designazioni:
Nomi esatti
HD 1989HD 169888
TYCHO-2 2000TYC 1581-1786-1
USNO-A2.0USNO-A2 1050-10494640
HIPHIP 90338
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