The Local Volume Galaxy Census AndHst Snap Surveys

We examined F814W and F606W images of dwarf galaxies from the Hubble Space Telescope archive, which were obtained under the HST SNAP programs 17159 to 17797. Among 58 observed dwarfs located outside the Local Group, we found only a few objects that were confidently resolved into stars. We determined two new distances for the galaxies: dw1252+2215 (5.32 ± 0.20 Mpc) and dw1234+3952 (4.34 ± 0.16 Mpc) via the Tip of the Red Giant Branch. They turned out to be new probable dwarf satellites of the nearby luminous spiral galaxies NGC4826 and NGC4736, respectively. We also note that recent SNAP surveys vary in their productivity in measuring new galaxy distances by more than an order of magnitude.

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https://arar.sci.am/publication/458755

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Աստղաֆիզիկա =Астрофизика = Astrophysics

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Karachentsev, I. D., The Local Volume Galaxy Census AndHst Snap Surveys	Jan 9, 2026

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