Table Description:
This table is available for ADQL queries and through the TAP endpoint.
Resource Description:
Time series in this collection were derived from CCD images obtained at the Kolonica Observatory, Slovakia.
The observations were carried out to monitor selected fields centred on eclipsing binary stars with two small telescopes.
The first instrument, ZIGA (PlaneWave CDK20, Corrected Dall–Kirkham), has a 508 mm aperture and is equipped with a Moravian Instruments G4-16000 CCD camera with UBVRI Bessell photometric filters. The second instrument, Alica (Explore Scientific MN-152, Maksutov–Newton), has a 152 mm aperture and is equipped with a Moravian Instruments G2-8300 CCD camera with Sloan g′ r′ i′ photometric filters. Both telescopes are currently in operation at the observatory.
The time series were produced with a custom photometric pipeline (Parimicha, Š., in preparation). Differential photometry is performed using comparison star magnitudes from APASS DR9.
Beyond the primary target (typically an eclipsing binary), the pipeline derives calibrated magnitudes for all stars in the field with sufficient signal-to-noise ratio. This approach, we believe, may help researchers follow the behaviour of other interesting objects over time.
For each photometric point, we provide the list of comparison stars used in its calculation (which may vary for each star and each image) via a DataLink service with #auxiliary semantics.
The corresponding calibrated images are published separately in the upjs_img image collection.
For a list of all services and tables belonging to this table's resource, see Information on resource 'External Tables with Lightcurves From Kolonica Observatory'
Resource Reference URL: Resource info
This table has an associated publication. If you use data from it, it may be appropriate to reference Parimucha, S., in prep. either in addition to or instead of the service reference.
To cite the table as such, we suggest the following BibTeX entry:
![[Operator logo]](/static/img/logo_medium.png){kind=logo}
@MISC{vo:upjs_ts_lightcur,
year=2025,
title={External Tables with Lightcurves From Kolonica Observatory},
author={\%authors in the format Last, F.I and Next, A.\%},
url={https://skvo.science.upjs.sk/tableinfo/upjs_ts.lightcurves},
howpublished={{VO} resource provided by the Pavol Josef Šafárik University Archive}
}
Sorted alphabetically. [Sort by DB column index]
| Name | Table Head | Description | Unit | UCD |
|---|---|---|---|---|
| comp_stars | Comparison stars | Gaia DR3 ids of comparison stars for the photomery point | N/A | meta.id |
| dateobs | Dateobs | Timestamp with timezone | N/A | time.epoch |
| id | PP Id | Identifier for this photometry point | N/A | meta.id;meta.main |
| image_filename | Image filename | Path to the fits image | N/A | meta.id;meta.fits |
| mag_diff | Mag diff | Differential magnitude | mag | phot.mag |
| mag_diff_err | Mag diff error | Estimation of differential magnitude error | N/A | stat.error;phot.mag |
| mag_err | Magnitude error | Estimation of magnitude error | mag | stat.error;phot.mag |
| magnitude | Magnitude | Stellar magnitude | mag | phot.mag |
| object_id | Object id | Object identifier for this photometry point | N/A | meta.id |
| photosys_id | PhotoSys id | Photometric system identifier | N/A | meta.id |
| quality | Quality | Quality flag | N/A | meta.code.qual |
Columns that are parts of indices are marked like this.
VO nerds may sometimes need VOResource XML for this table.