Stellar motions along I = 60 - 240 and I = 150-330 inhomogeneous frequency distribution of spectral types

Authors

  • S. Menge de Freitas UFRJ; Departamento de Astronomia; Observatório do Valongo

DOI:

https://doi.org/10.11137/1990_0_69-72

Abstract

Applications of the x² test to the frequency distribution of spectral types show a slight predominance of A, F and G stars running approximately along I = 60 - 240 ; along the orthogonal direction, there seems to occur a preponderance of K and M stars.

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Published

1990-12-01

How to Cite

Freitas, S. M. de (1990) “Stellar motions along I = 60 - 240 and I = 150-330 inhomogeneous frequency distribution of spectral types”, Anuário do Instituto de Geociências. Rio de Janeiro, BR, 13, pp. 69–72. doi: 10.11137/1990_0_69-72.

Issue

Vol. 13 (1990)

Section

Article

License

This journal is licensed under a Creative Commons — Attribution 4.0 International — CC BY 4.0, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.