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Kinematics of Sandage-Fouts stars in three cardinal directions
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| KPNO lunar occultation summary. II
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New radial velocities are presented for 1295 stars chosen at random nearthe three cardinal Galactic directions of l = 180 deg, b = 0; l = 90deg, b = 0 deg; and b = 90 deg, giving the distribution in U, V, and W,respectively, from the radial velocities alone. The measurements weremade with the coude spectrograph of the Mount Wilson 100 in. Hookerreflector. The purpose of the program is to set limits on the densitynormalization in the solar neighborhood of the old thin disk, the oldthick disk, and the halo. Many more high-velocity stars are present inthe unbiased sample than expected from previous estimates of thenormalization. The data suggest the density ratios in the solarneighborhood to be about 90 percent, 10 percent, and about 0.5 percentfor the thin disk, thick disk, and halo populations, respectively.
| Vitesses radiales dans 4 champs de petite latitude galactique.
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Osservazione e dati astrometrici
| Costellazione: | Gemelli |
| Ascensione retta: | 06h01m18.25s |
| Declinazione: | +27°16'52.8" |
| Magnitudine apparente: | 9.126 |
| Moto proprio RA: | -7.1 |
| Moto proprio Dec: | -120 |
| B-T magnitude: | 9.779 |
| V-T magnitude: | 9.18 |
Cataloghi e designazioni:
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