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II/336 AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)
The following files can be converted to FITS (extension .fit or fit.gz)
apass9.sam
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Query from: http://vizier.cds.unistra.fr/viz-bin/VizieR?-source=II/336
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-r--r--r-- 1 cats archive 148000 Feb 1 2016 apass9.sam
-rw-r--r-- 1 cats archive 12386880 Aug 22 2022 tab_2336_1_II_336_apass9.moc.fits Beginning of ReadMe :II/336 AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)
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APASS: The AAVSO Photometric All-Sky Survey - Data Release 9
Henden A.A., Templeton M., Terrell D., Smith T.C., Levine S., Welch D.
<American Association of Variable Star Observers (AAVSO) (2016)>
=2015AAS...22533616H
=2016yCat.2336....0H
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ADC_Keywords: Stars, variable ; Photometry, UBV ; Photometry, SDSS
Description:
The AAVSO Photometric All Sky Survey (APASS) project is designed to
bridge the gap between the shallow Tycho2 two-bandpass photometric
catalog that is complete to V=11 and the deeper, but less
spatially-complete catalogs like SDSS or PanSTARRS. It can be used for
calibration of a specific field; for obtaining spectral information
about single sources, determining reddening in a small area of the
sky; or even obtaining current-epoch astrometry for rapidly moving
objects.
The survey is being performed at two locations: near Weed, New Mexico
in the Northern Hemisphere; and at CTIO in the Southern Hemisphere.
Each site consists of dual bore-sighted 20cm telescopes on a single
mount, designed to obtain two bandpasses of information
simultaneously. Each telescope covers 9 square degrees of sky with
2.5arcsec pixels, with the main survey taken with B,V,g',r',i' filters
and covering the magnitude range 10<V<17. A bright extension is
underway, saturating at V=7 and extending the wavelength coverage from
u' to Y. The current catalog is Data Release 9 and contains
approximately 62 million stars.
The American Association of Variable Star Observers is responsible for
the overall management of the survey; a team of professional
astronomers participate in the data analysis. The project was
initially funded by the Robert Martin Ayers Sciences Fund, with a
follow-on grant from the National Science Foundation.
Acknowledging APASS in publications:
Please include the following in any published material that makes use
of the APASS data products:
"This publication makes use of data products from the AAVSO
Photometric All Sky Survey (APASS). Funded by the Robert Martin Ayers
Sciences Fund and the National Science Foundation."