AAS Meeting #193 - Austin, Texas, January 1999
Session 64. Pulsating Stars
Display, Friday, January 8, 1999, 9:20am-6:30pm, Exhibit Hall 1

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[64.07] Measuring the Diameter of delta Cep with the NPOI

T. Nordgren (USNO), J.T. Armstrong (NRL), M. E. Germain, A.R. Hajian, R. Hindsley (USNO), R.N. Thessin (Thomas Jefferson HS for Science and Technology), K.J. Johnston (USNO)

We report the mean uniform disk diameter of delta Cephei, one of the smallest stars to have its angular diameter measured by the Navy Prototype Optical Interferometer. The ability of the NPOI to precisely measure angular diameters less than 2.0 mas in size, as well as the ability to detect angular size variations of this archetypal cepheid variable, is presented.

The author(s) of this abstract have provided an email address for comments about the abstract: nordgren@sextans.lowell.edu

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