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A photoelectric UBV sequence in SA 184
A photometric sequence in SA 184 is presented. A total of 135 UBVobservations have been made for 27 sequence stars. They range in B from7.1 to 20.2 and in B-V from +0.2 to +1.6. The resulting accuracy ofmagnitudes and colours should internally as well as externally be aroundor better than 0.02 magnitude for most of the data presented. Accuratecoordinates are given together with identification maps. The resultingUBV data are plotted in a two-colour diagram. Some results arediscussed.
| UBV photometry of early-type stars in two regions at high galactic latitudes
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| A Finding List of Stars of Spectral Type A7 and Earlier in Regions at High Galactic Latitudes. IV. 3 HLF 4
An objective prism survey has been made of stars of spectral type A7 andearlier in a 45 square degree region in the 3 HLF 4 area (l^II = 0°,b^II = -45°) as part of an investigation of galactic structureperpendicular to the galactic plane. The survey reported here was madewith the 4° prism on the Michigan Curtis Schmidt telescope at CerroTololo. A finding list containing positions and spectral types for 146stars is presented with finding charts for the stars too faint to beincluded on the Cordoba Durchmusterung charts.
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Osservazione e dati astrometrici
| Costellazione: | Microscopio |
| Ascensione retta: | 20h58m10.05s |
| Declinazione: | -44°54'56.7" |
| Magnitudine apparente: | 9.527 |
| Moto proprio RA: | 5.7 |
| Moto proprio Dec: | -14.5 |
| B-T magnitude: | 9.79 |
| V-T magnitude: | 9.549 |
Cataloghi e designazioni:
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