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HD 68438


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Speckle Observations of Binary Stars with the WIYN Telescope. III. A Partial Survey of A, F, and G Dwarfs
Two hundred thirty nearby main-sequence stars with spectral types in therange of A to G have been observed by way of speckle interferometryusing the WIYN 3.5 m telescope at Kitt Peak, Arizona. The stars had noprevious mention of duplicity in the literature. Of those observed, 14showed clear evidence of a companion, and 63 were classified assuspected nonsingle based on a power spectrum analysis. The remainingstars discussed show no evidence of duplicity to the limit of thedetection system in high-quality observations. The WIYN Observatory is ajoint facility of the University of Wisconsin-Madison, IndianaUniversity, Yale University, and the National Optical AstronomyObservatory.

Photoelectric observations of lunar occultations. X
Photoelectric occulation results for 461 events observed during 15months are reported. They include 77 reappearances, 4 determinations ofangular diameter, 38 analyses of double or multiple stars including twopreviously unknown bright stars, and 8 previously known bright double ormultiple stars.

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Osservazione e dati astrometrici

Costellazione:Cancro
Ascensione retta:08h12m58.04s
Declinazione:+14°35'49.8"
Magnitudine apparente:8.45
Moto proprio RA:-39.2
Moto proprio Dec:-13.2
B-T magnitude:9.181
V-T magnitude:8.511

Cataloghi e designazioni:
Nomi esatti   (Edit)
HD 1989HD 68438
TYCHO-2 2000TYC 806-208-1
USNO-A2.0USNO-A2 0975-05777633

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