Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The NStED Stellar and Exoplanet Hosting Star Service   The NASA Star and Exoplanet Database (NStED) is a general purpose stellar
archive with the aim of providing support for NASA's planet finding and
characterization goals, stellar astrophysics, and the planning of NASA and
other space missions. There are two principal components of NStED: a database
of (currently) 140,000 nearby stars and exoplanet-hosting stars, and an archive
dedicated to high precision photometric surveys for transiting exoplanets. We
present a summary of the NStED stellar database, functionality, tools, and user
interface. NStED currently serves the following kinds of data for 140,000 stars
(where available): coordinates, multiplicity, proper motion, parallax, spectral
type, multiband photometry, radial velocity, metallicity, chromospheric and
coronal activity index, and rotation velocity/period. Furthermore, the
following derived quantities are given wherever possible: distance, effective
temperature, mass, radius, luminosity, space motions, and physical/angular
dimensions of habitable zone. Queries to NStED can be made using constraints on
any combination of the above parameters. In addition, NStED provides tools to
derive specific inferred quantities for the stars in the database,
cross-referenced with available extra-solar planetary data for those host
stars. NStED can be accessed at http://nsted.ipac.caltech.edu

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The categories of this paper are: q-bio
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The categories of this paper are: acc-phys
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The categories of this paper are: supr-con
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The categories of this paper are: physics
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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: q-alg
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The categories of this paper are: stat
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The categories of this paper are: mtrl-th