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HD 192190


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Photoelectric observations of lunar occultations. XIV
Observations of 314 events between March 1982 and March 1983 arepresented in the same form as in previous papers in this series. Theresults include 18 cases of duplicity of which 12 appear to be newdiscoveries. Unluckily, few cases of possible large angular diametersoccurred, and in no case can the results derived be accepted withoutreserve, these having been observed at very low altitudes withconsequent severe corruption by seeing effects. A remark on theincidence of doubles in the Hyades and its possible consequences forestimates of stellar distances is appended.

Estimation of spectral classifications for bright southern stars with interesting Stromgren indices
This paper investigates the degree of success with which uvby photometrycan be applied to predict spectral classifications for 947 A, F, and Gstars brighter than an apparent magnitude of 8.3 and with four-colorindices indicating some kind of interesting, unusual, or peculiarspectrum. One or several possible spectral classifications are estimatedfor each star from photometry alone, double stars are distinguished, andthe estimates are compared with published classifications. The resultsshow that the framework provided by uvby photometry can be extended toinclude most G and K stars, reddened stars, peculiar stars, and certaintypes of double star.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Oglak
Sað Açýklýk:20h14m18.63s
Yükselim:-22°02'20.8"
Görünürdeki Parlaklýk:8.215
Uzaklýk:202.84 parsek
özdevim Sað Açýklýk:40.7
özdevim Yükselim:-15.3
B-T magnitude:8.701
V-T magnitude:8.256

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 192190
TYCHO-2 2000TYC 6327-1168-1
USNO-A2.0USNO-A2 0675-35103136
HIPHIP 99745

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