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1988•Publications of the Astronomical Society of the PacificOpen access

A reevaluation of the Cepheid distance to NGC 300

A. R. Walker

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Abstract

CCD photometry is used to correct the B and V magnitudes of the fainter stars in a sequence that calibrates the photographic photometry of the NGC 300 Cepheids. The revised magnitudes for the Cepheids give a true distance modulus of 26.4±0.2 mag for NGC 300, 7.9 mag greater than that for the LMC and in excellent agreement with the distance found from infrared photometry of two of the Cepheids.

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CCD photometry is used to correct the B and V magnitudes of the fainter stars in a sequence that calibrates the photographic photometry of the NGC 300 Cepheids. The revised magnitudes for the Cepheids give a true distance modulus of 26.4±0.2 mag for NGC 300, 7.9 mag greater than that for the LMC and in excellent agreement with the distance found from infrared photometry of two of the Cepheids.

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Available abstract

CCD photometry is used to correct the B and V magnitudes of the fainter stars in a sequence that calibrates the photographic photometry of the NGC 300 Cepheids. The revised magnitudes for the Cepheids give a true distance modulus of 26.4±0.2 mag for NGC 300, 7.9 mag greater than that for the LMC and in excellent agreement with the distance found from infrared photometry of two of the Cepheids.

Key concepts: Cepheid variable, Photometry (optics), Distance modulus, Physics, Astrophysics, Astronomy, Stars, Cosmic distance ladder

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