New Cepheid Distances to Nearby Galaxies Based on BVRI CCD Photometry. III. NGC 300
Abstract
A true distance modulus of (m - M)_0_ = 26.66 +/- 0.10 mag (corresponding to 2.1 +/- 0.1 Mpc) has been determined for the Sculptor Group spiral galaxy NGC 300. New CCD data have been obtained for a sample of known Cepheids in this galaxy from which apparent distance moduli at B, V, R, and I wavelengths are determined. Combining the data available at different wavelengths, and assuming a true distance modulus to the LMC of 18.5 mag, a true distance modulus is obtained for NGC 300, corrected for the effects of interstellar reddening. The availability of a new distance to NGC 300 brings to five the total number of galaxies with new CCD photometry of Cepheids, useful for calibration of the Hubble constant.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 1992
- DOI:
- Bibcode:
- 1992ApJ...396...80F
- Keywords:
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- Astronomical Photometry;
- Cepheus Constellation;
- Charge Coupled Devices;
- Local Group (Astronomy);
- Red Shift;
- Astrometry;
- Hubble Constant;
- Interstellar Extinction;
- Spiral Galaxies;
- Astrophysics;
- GALAXIES: DISTANCES AND REDSHIFTS;
- GALAXIES: INDIVIDUAL NGC NUMBER: NGC 300;
- GALAXIES: LOCAL GROUP;
- STARS: VARIABLES: CEPHEIDS;
- TECHNIQUES: PHOTOMETRIC