fractional method

More Like This

Show all results sharing this subject:

  • Astronomy and Astrophysics


Show Summary Details

Quick Reference

A visual method of estimating the brightness of a variable star, using two comparison stars. The interval between the comparisons is mentally divided into a small number of steps. Estimates such as A(2)V(3)B or C(4)V(1)D result, where the figures in parentheses represent the number of brightness steps between the variable, V, and pairs of comparison stars, A, B and C, D. The actual magnitude may be calculated from the known magnitude of the comparison stars.

Subjects: Astronomy and Astrophysics.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.