Archives of Photographic PLates for Astronomical USE

Light curves (applause_dr3.lightcurve)

The table has 2342278656 rows, 35 columns.

Description

This table contains calibrated magnitudes, sky coordinates and source designations from the source_calib table, and observation time from the exposure table. Each row in the table has a unique source_id, which is the same as in the source and source_calib tables. It"s a convenience for constructing a lightcurve for a selected object. It does not provide periods etc. Unique Identifier source_id

Attribution

If you have made substantial use of the data provided by APPLAUSE DR3, kindly include this acknowledgement

Funding for APPLAUSE has been provided by DFG (German Research Foundation, Grant), Leibniz Institute for Astrophysics Potsdam (AIP), Dr. Remeis Sternwarte Bamberg (University Nürnberg/Erlangen), the Hamburger Sternwarte (University of Hamburg) and Tartu Observatory. Plate material also has been made available from Thüringer Landessternwarte Tautenburg.

Columns

Name Type UCD Unit Description
source_id long meta.id
meta.main

Source identification number

process_id int meta.id

Process identification number

scan_id int meta.id

Scan identification number

exposure_id int meta.id

Exposure Identification number

plate_id int meta.id

Plate identification number

archive_id int meta.id

Archive identification number

ut_start char time.start
obs.exposure
Time[yyyy-mm-dd hh:mm:ss]

UT date and time of the start of exposure

ut_mid char time.interval
obs.exposure
Time[yyyy-mm-dd hh:mm:ss]

UT date and time of the midpoint of exposure

jd_start double time.start
obs.exposure

Julian date at the start of exposure

jd_mid double time.epoch
obs.exposure

Julian date at the mid-point of exposure

hjd_mid double time.interval
obs.exposure

Heliocentric Julian Day of mid-point of exposure

year_start double time.start
obs.exposure

Decimal year of the start point of exposure

year_mid double time.epoch
obs.exposure

Decimal year of the mid-point of exposure

exptime float time.interval
obs.exposure
s

Exposure time

raj2000 double pos.eq.ra deg

Right ascension of the source (equinox J2000)

dej2000 double pos.eq.dec deg

Declination of the source (equinox J2000)

tycho2_hip int meta.id.cross

Identification of the matched HIPPARCOS catalogue object

tycho2_id char meta.id.cross

Identification of the matched Tycho-2 catalogue object

ucac4_id char meta.id.cross

Identification of the matched UCAC4 catalogue object

healpix256 int pos.healpix

Source HEALPix number (nside=256, nested ordering)

natmag float phot.mag
em.opt
mag

Calibrated magnitude of the source in the plate natural photometric system

natmagerr float stat.error
phot.mag
em.opt
mag

Estimated error on the calibrated magnitude of the source in the plate natural photometric system

bmag float phot.mag
em.opt.B
mag

Calibrated B magnitude of the source

bmagerr float stat.error
phot.mag
em.opt.B
mag

Estimated error on the calibrated B magnitude of the source

vmag float phot.mag
em.opt.V
mag

Calibrated V magnitude of the source

vmagerr float stat.error
phot.mag
em.opt.V
mag

Estimated error on the calibrated V magnitude of the source

color_term float stat.fit.param

Color term of the plate, characterizing color response of the emulsion and filter used

color_bv float phot.color
em.opt.B
em.opt.V
mag

B-V color index of the source, based on the UCAC4 or Tycho-2 catalogue

annular_bin short meta.code

Annular bin (1-9) where the source belongs (bin 1 is in the center, bin 9 is at the edge)

nn_dist float pos.distance arcsec

Distance to the nearest neighbor among extracted sources

sextractor_flags short meta.code

Flags given by SExtractor

zenith_angle float pos.az.zd

Zenith angle of the source

airmass float obs.airMass

Path length for light rays from a celestial source to pass through the atmosphere

obstime_flag char meta.code

Flag indicatuiing, that the observation time is only known up to a day precision

pos char meta.number (radians,radians)

GIS index for (ra,dec)