Visibility of Jupiter's Red Spot

Abstract

THE existence of a relationship between the visibility (V) of Jupiter's red spot and the Zurich relative sunspot number (RZ) was claimed in a letter by Graf, Smith and McDevitt1. Subsequently it was shown by Argyle2 that the correlation coefficient between V and RZ was too low (r = 0.27) to support the hypothesis put forward by Graf et al. The correlation analysis was then extended to more recent data by Solberg and Chapman3, who found an even lower value for r. In a recent letter Basu4 has attempted to reinstate the original claim of Graf et al. by smoothing and partitioning the data before performing the correlation analysis. Basu states that the smoothed visibility function for Jupiter's red spot in the selected period 1894–1945 was dependent on solar activity, but that this dependence vanished or changed about 1947, and had not returned by 1965.

References

  1. 1

    Graf, E. R., Smith, C. E., and McDevitt, F. R., Nature, 218, 857 (1968).

  2. 2

    Argyle, E., Nature, 219, 474 (1968).

  3. 3

    Solberg, H. G., and Chapman, C. R., Nature, 221, 352 (1969).

  4. 4

    Basu, D., Nature, 222, 69 (1969).

  5. 5

    Epstein, R. A., The Theory of Gambling and Statistical Logic, 418 (Academic Press, New York and London, 1967).

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

ARGYLE, E. Visibility of Jupiter's Red Spot. Nature 223, 485 (1969). https://doi.org/10.1038/223485a0

Download citation

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.