activity
19992011
most citedAstrophysical Quantities of Cepheid Variables Measured with the NPOI

230 citations · 574 across the 9 of their papers we have counts for

collaborators
Showing 1999Show all

1 paper · 1 filter

astro-ph1999★ 76 cited

HST Measurements of the Expansion of NGC 6543: Parallax Distance and Nebular Evolution

D. S. Reed, B. Balick, A. R. Hajian +5

The optical expansion parallax of NGC 6543 has been detected and measured using two epochs of HST images separated by a time baseline of only three years. We have utilized three se…