Object 173: The Hot Calibrator
From George's Random Astronomical Object by George Bendo
April 13, 2026 · 10 min
About this episode
This episode discusses G191-B2B, a hot white dwarf used for flux calibration in astronomy.
G191-B2B is a hot white dwarf with a layer of nearly pure oxygen that has been used as a flux calibration source for one particularly famous telescope.
People in this episode
Host: George Bendo
Topics covered
- white dwarf
- flux calibration
- astronomy
- oxygen layer
- telescope
Keywords
- G191-B2B
- white dwarf
- flux calibration
- oxygen
- telescope
Mentioned in this episode
Organizations: telescope
Books & works: G191-B2B
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