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The distribution of G5-M stars in a region at the south galactic pole
A survey has been conducted of an 81-sq deg area at the south galacticpole (SGP) in order to study the late-type star distribution as afunction of distance from the galactic plane. Both spectral types andluminosity classes are obtained from objective-prism spectra, usingclassification criteria closely associated with the MK classificationsystem. The SGP data are compiled into a catalog of 2228 stars of typeG5 and later, to a limiting magnitude of V=13.5 mag. An analysis of thedensity distribution of both dwarfs and giants indicates that the numberof dwarfs, as a function of magnitude, appears inconsistent with theassumption of a uniform density distribution for these stars.
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Osservazione e dati astrometrici
| Costellazione: | Balena |
| Ascensione retta: | 01h23m11.93s |
| Declinazione: | -14°06'47.2" |
| Magnitudine apparente: | 9.087 |
| Moto proprio RA: | 92.4 |
| Moto proprio Dec: | -8.5 |
| B-T magnitude: | 9.873 |
| V-T magnitude: | 9.152 |
Cataloghi e designazioni:
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