bgds2.lc_oiiiivo://org.gavo.dc/bgds/l2/lc_oiiidoi:10.21938/dChYyzuCGA00rsfzfQ8v:QThe GAVO DC teamBlex, J.Hackstein, M.Westhues, C.Ramolla, M.Demleitner, M.Fein, C.Chini, R.2026-04-07T10:09:44ZGAVO Data Centre Team

Mönchhofstrasse 12-14, D-69120 Heidelberg

gavo@ari.uni-heidelberg.de+49 6221 54 1837surveysgalaxy-planesmilky-way-galaxyvariable-starsbroad-band-photometrytime-domain-astronomy BGDS DR2 lightcurves in the Astrodon OIII band. Lightcurves are available in i' and r' for all fields and partially in U, B, V, z, OIII, NB, Halpha and SII if they have enough observations.2026AN....34770087Bhttps://dc.g-vo.org/tableinfo/bgds2.lc_oiiiSurveyResearchIsNewVersionOfBGDS light curves DR1Universitätssternwarte Bochum near Cerro ArmazonesRobotic Bochum Twin Telescope (RoBoTT)3/336,338,450-451,461,472,591-592,613,615,621,651-652,659,662-663 4/1301,1303,1358,1376-1377,1379-1380,1382,1794,1816,1818-1819,1822-1823,1829,1840-1841,1892,1894,1897,2327,2333,2335,2357-2359,2376,2378,2400,2402,2408,2492-2493,2495,2528,2530,2536,2538,2591,2599,2601-2603,2612-2614,2616,2634-2635,2643,2646-2647,2656-2657,2688-269055439 58751.41.777e-19 6.621e-19Opticaltimeseriesbgds2 From the Bochum Galactic Disk Survey, time series have been obtained in the r and i bands on an (up to) nightly basis. Depending on the field, the time series contain up to more than 300 nights over 9 years. Each measurement in r and i represents the averaged flux over 10 minutes of observation (from 9 averaged 10s images). Additionally, intermittent measurements in Johnson UVB, Sloan z and the narrowbands OIII, NB, Halpha and SII have been recorded as well. The Bochum Galactic Disk Survey is a project to monitor the stellar content of the Galactic disk in a 6 degree wide stripe centered on the Galactic plane. The data has been recorded from September 2010 to September 2019 in Sloan r and i simultaneously with the Robotic Bochum Twin Telescope (RoBoTT) at the Universitaetssternwarte Bochum near Cerro Armazones in the Chilean Atacama desert. It contains measurements of about 2x10^7 stars over nine years. The source images are available from ivo://org.gavo.dc/bgds/q/sia.bgds2.lc_oiii BGDS DR2 lightcurves in the Astrodon OIII band. Lightcurves are available in i' and r' for all fields and partially in U, B, V, z, OIII, NB, Halpha and SII if they have enough observations.19937obs_idMain identifier of this observation (a single object may have multiple observations in different bands and fields)meta.id;meta.maincharindexedprimarygdr3_idGaia DR3 source_id of this object.meta.id.cross29296384285929734403.0276701637698514e+185.334893060128903e+186.053414365808342e+1860709987389031877120.99951667longnullableraICRS right ascension for this object as mean of the positions obtained from source extraction.pos.eq.ra;meta.main100.047103.78152.056280.33283.6751doubleindexednullabledecICRS declination for this object as mean of the positions obtained from the source extraction.pos.eq.dec;meta.main-65.9373-64.2493-34.0598-4.278910.605271doubleindexednullablefieldSurvey field observed.meta.id;obs.fieldcharnullablemed_magMedian magnitude in Astrodon OIII.magphot.mag;em.line.oiii;stat.median6.7774211.005614.379815.185815.33411floatnullableerr_magError in median magnitude in Astrodon OIIImagstat.error;phot.mag;em.line.oiii0.01868690.0213960.1401480.3007030.9565451floatnullableampDifference between brightest and weakest observation.magphot.mag;em.opt;arith.diff00.015640.185370.65400714.61floatnullablefluxMedian flux in the Astrodon OIII band; this is computed from the median magnitude based on Landolt standard stars.mJyphot.flux;em.line.oiii;stat.median2.669183.059916.42841143.8137064.141floatnullableerr_fluxError in median flux in the Astrodon OIII bandmJystat.error;phot.flux;em.line.oiii0.2773880.4170130.8616523.439325390.621floatnullablenobsNumber of observations of this objectmeta.number;obs22.03.04.041.0shortvar1 if the light curves was classified as variable. 0 otherwise. The variability analysis is done only for r and i.meta.code;src.var00.00.00.001.0shortnullablemjdsAn array containing the time values of the time seriesdtime.epochdoublenullablemagsAn array containing the Astrodon OIII magnitude for the times in mjdmagphot.mag;em.line.oiiifloatnullablemag_errsAn array containing per-epoch errors for the mags arraymagstat.error;phot.magfloatnullabletime_minFirst timestamp in time series (MJD Topocentric UTC)dtime.epoch;stat.min58205.258205.258205.258207.258226.11doubleindexednullabletime_maxLast timestamp in time series (MJD Topocentric UTC)dtime.epoch;stat.max58238.1582685827158271582711doubleindexednullabletime_avgMean epoch of the observationsdtime.epoch;stat.mean58224.958235.558238.758241.358250.81doubleindexednullablessa_bandpassBandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger.instr.bandpassssa:DataID.Bandpasscharindexednullablessa_specstartLower value of spectral coordinatemem.wl;stat.minssa:Char.SpectralAxis.Coverage.Bounds.Start4.97e-074.97e-074.97e-074.97e-074.97e-071floatindexednullablessa_specendUpper value of spectral coordinatemem.wl;stat.maxssa:Char.SpectralAxis.Coverage.Bounds.Stop5.04e-075.04e-075.04e-075.04e-075.04e-071floatindexednullablessa_specmidMidpoint of region covered in this datasetminstr.bandpassssa:Char.SpectralAxis.Coverage.Location.Value5e-075e-075e-075e-075e-071floatnullablessa_apertureAngular diameter of aperture. The aperture is elliptical and adaptively scaled for each source using the Kron radius (1980ApJS...43..305K), as implemented in SourceExtractor (1996A&AS..117..393B). The mean FWHM of all sources for each filter is given.degphys.angSize;instr.fovssa:Char.SpatialAxis.Coverage.Bounds.Extent0.00120.00120.00120.00120.00121floatnullable