Atmospheric extinction of U-B photometry
Abstract
Bouguer lines have been used to measure the atmospheric extinction of U-B, and two approaches to correcting U-B for the atmosphere are examined. We find that the conventional photometric reductions may be sufficiently accurate when the range of airmass is small enough (in terms of a maximum hazarded error of 0.04mag per airmass), but we recommend the use of a colour term in the correction for U-B extinction when this condition is not satisfied.
- Publication:
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Monthly Notices of the Royal Astronomical Society
- Pub Date:
- May 2001
- DOI:
- 10.1046/j.1365-8711.2001.04187.x
- Bibcode:
- 2001MNRAS.323..380C
- Keywords:
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- TECHNIQUES: PHOTOMETRIC