Summary details for NGC 3201 Exoplanet Archive-ETSS Data Sets


Las Campanas Observatory 1m Swope Telescope.


TEK 5 CCD, SITe 1 2048x2048 CCD

Observed Region

The NGC 3201 field was observed using a single pointing centered on the cluster center with a field-of-view of about 24° on the side.

Observed Filters

Observations of NGC 3201 were conducted in both V and I filters. Exposure times were 600s in both filters for the time-series data, complemented by single-epoch shorter exposures for color-magnitude diagram purposes.

Photometric Technique

The data were processed using standard IRAF routines; photometry was done using DoPHOT, subsequent relative photometry using a customized pipeline (akin to standard differential ensemble photometry). Variability detection was based on a chi-squared algorithm, period determination on Minimum-String-Length and Analysis-of-Variance method.

Data Ranges

The data parameters fall into the following approximate ranges:

NGC 3201
Field Min Max
RA (2000) 10 16.466 10 18.685
Dec (2000) -46 36.693 -46 12.920
HJD of the
2450244.476 2450940.531
V magnitude 16.07 23.74
I magnitude 15.46 22.36
Total number of stars - 58666
Number of epochs - ~120

Field Images

Figure 1

Figure 1: Color image of NGC 3201 with location of detected variable stars.

Download Data Sets

NGC 3201
NGC 3201 summary file IPAC ASCII format table
NGC 3201 light curves Download scripts

Primary References