Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Determining Accurate Distances to Nearby Galaxies   We have undertaken several projects with the purpose of determining accurate
distances to nearby galaxies to calibrate the extragalactic distance scale.
Specifically, I describe the DIRECT project which aims to derive the distance
to M31 and M33 directly, using detached eclipsing binaries and the
Baade-Wesselink method for Cepheids. I also present a ``hybrid'' method of
discovering Cepheids with ground-based telescopes using image subtraction and
then following them up with the HST to derive Cepheid period-luminosity
distances.

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The categories of this paper are: nlin
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The categories of this paper are: q-alg
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The categories of this paper are: bayes-an
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: math
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The categories of this paper are: eess
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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: econ