SDSS9 colorivo://CDS/P/SDSS9/colorCDSBoch T.2013-12-18T09:42:00Z2019-05-05T06:57:00ZCDS Helpdeskcds-question@unistra.frSky surveyOptical astronomyThe Sloan Digital Sky Survey is a multi-filter imaging and spectroscopic redshift survey using a dedicated 2.5-m wide-angle optical telescope at Apache Point Observatory in New Mexico, United States. Data collection began in 2000, and the final imaging data release covers over 35% of the sky. This color composition is an CDS alternative to the orignal SLOAN color composition using the g, r an i original DR9 bands with a log transfer function and specifical cuts for each band.Original acknowledgement for data: Sloan Digital Sky Surveyhttps://alasky.cds.unistra.fr/SDSS/DR9/colorSurveyResearchIsDerivedFromSLOAN - http://www.sdss.orgThis HiPS is distributed under ODbL license by Unistra/CNRShttps://alasky.cds.unistra.fr/SDSS/DR9/colorhttps://alaskybis.cds.unistra.fr/SDSS/DR9/colorhttps://irsa.ipac.caltech.edu/data/hips/CDS/SDSS/DR9/colorhttps://healpix.ias.u-psud.fr/CDS_P_SDSS9_colorhttp://skies.esac.esa.int/SDSS9Color54466 568992.3679173407425543e-19 5.252368739156343e-19https://alasky.cds.unistra.fr/SDSS/DR9/color/Moc.fitsOptical