Abstract
We have obtained new UBV star count data in 16 square degrees centered on Selected Area 54 [(l, b) = (200°,+59°)], based on 10 plates taken with the Kiso Schmidt telescope.
We have constructed a model for the Galaxy based on systematic analysis of wide-area surveyed star counts, including our new data in SA54. Our results are summarized as follows: the sun is situated at 40pc north from the mid-plane of the disc; the scale length of the thin disc is 3.8kpc; the scale height of the thick disc is 900pc; the axial ratio of the spheroid is 0.84; local normalization of the thick disc relative to the thin disc is 0.019 and that of the spheroid is 1/900.
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© 1992 Springer Science+Business Media Dordrecht
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Yamagata, T., Yoshii, Y. (1992). UBV Star Counts in Selected Area 54, and Global Structure of the Galaxy. In: MacGillivray, H.T., Thomson, E.B. (eds) Digitised Optical Sky Surveys. Astrophysics and Space Science Library, vol 174. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2472-0_32
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DOI: https://doi.org/10.1007/978-94-011-2472-0_32
Publisher Name: Springer, Dordrecht
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