EPJ Web Conf.
Volume 152, 2017Wide-Field Variability Surveys: A 21st Century Perspective – 22nd Los Alamos Stellar Pulsation – Conference Series Meeting
|Number of page(s)||2|
|Section||Surveys and the future: The way ahead|
|Published online||08 September 2017|
Using APASS and 2GSS for studying variable stars
1 American Association of Variable Star Observers, Cambridge, MA, USA
2 Lowell Observatory, Flagstaff, AZ, USA
3 McMaster University, Hamilton, ON, Canada
4 Southwest Research Institute, Boulder, CO, USA
5 Dark Ridge Observatory (DRO), Weed, NM, USA
Published online: 8 September 2017
The AAVSO Photometric All-Sky Survey (APASS) provides calibrated magnitudes in the range 7 < V < 17 for the entire sky, in the BVugriZsY bandpasses. While primarily designed for 0.02 mag calibration, it provides photometry over a many-year baseline, and also has near daily cadence in the standard field regions on the equator. Likewise, the Second Generation Synoptic Survey (2GSS) is a follow-on to APASS, and will provide daily cadence in two passbands for the entire sky.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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