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H0 Key Project

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1 papers

The Hubble Space Telescope Extragalactic Distance Scale Key Project. X. The Cepheid Distance to NGC 7331

The distance to NGC 7331 has been derived from Cepheid variables observed with HST/WFPC2, as part of the Extragalactic Distance Scale Key Project. Multi-epoch exposures in F555W (V) and F814W (I), with photometry derived independently from…

Astrophysics · Physics 2017-01-04 H0 Key Project , : , Shaun M. G. Hughes , Mingsheng Han , John Hoessel , Wendy L. Freedman , Robert C. Kennicutt , Jeremy. R. Mould , Abi Saha , Peter B. Stetson , Barry F. Madore , Nancy A. Silbermann , Paul Harding , Laura Ferrarese , Holland Ford , Brad K. Gibson , John A. Graham , Robert Hill , John Huchra , Garth D. Illingworth , Randy Phelps , Shoko Sakai