NGC300 V21

Photometry

• Freedman, W.L., Madore, B.F., Hawley, S.L., Horowitz, I.K., Mould, J., Navarrete, M., and Sallmen, S. 1992, ApJ, 396, 80
  " New Cepheid Distances to Nearby Galaxies Based on BVRI CCD Photometry "
  24 BVRI measurements [abstract] , [data] , [notes]