title: Comment on "A large excess in apparent solar oblateness due to surface magnetism".
abstract: Fivian et al. (Reports, 24 October 2008, p. 560) analyzed data from the Reuven Ramaty High-Energy Solar Spectroscopic Imager satellite and reported that the Sun is more oblate than previous measurements have suggested. We argue that their threshold-based analysis yields a biased measure of the solar limb shape geometry.
authors.affiliation: Institute for Astronomy, University of Hawaii, Pukalani, Maui, HI 96760, USA. kuhn@ifa.hawaii.edu
authors.forename: J R
authors.initials: JR
authors.lastname: Kuhn
authors.forename: M
authors.initials: M
authors.lastname: Emilio
authors.forename: R
authors.initials: R
authors.lastname: Bush