creator_did = ivo://CDS/P/Mellinger/color obs_collection = Mellinger color obs_title = Mellinger color optical survey obs_description = Using a portable low-cost CCD camera system, 70 fields (each covering 40degĂ—27deg) were imaged over a time span of 22 months from dark-sky locations in South Africa, Texas, and Michigan. The fields were photometrically calibrated against standard catalog stars. Using sky background data from the Pioneer 10 and 11 space probes, gradients resulting from artificial light pollution, airglow, and zodiacal light were eliminated, while the large-scale galactic and extragalactic background resulting from unresolved sources was preserved. The 648 megapixel image is a valuable educational tool, being able to fully utilize the resolution and dynamic range of modern full-dome planetarium projection systems. #obs_ack = Acknowledgement mention prov_progenitor = Axel Mellinger bib_reference = 2009PASP..121.1180M bib_reference_url = http://adsabs.harvard.edu/cgi-bin/nph-bib_query?db_key=AST&bibcode=2009PASP..121.1180M obs_copyright = Copyright 2000-2017 Axel Mellinger. All rights reserved. obs_copyright_url = http://www.milkywaysky.com/ client_category = Image/Optical client_sort_key = 03-03 hips_creation_date = 2010-07-12T00:00Z hips_release_date = 2019-05-05T06:40Z hips_builder = Aladin/HipsGen v10.123 hips_creator = CDS (T.Boch) hips_version = 1.4 hips_order = 4 hips_frame = galactic hips_tile_width = 512 hips_tile_format = jpeg dataproduct_type = image client_application = AladinLite hips_status = public mirror unclonable #For compatibility hips_copyright = CNRS/Unistra # October 2007 and August 2009 t_min = 54374 t_max = 55044 obs_regime = Optical em_min = 4e-7 em_max = 8e-7 #hips_master_url = ex: http://yourHipsServer/null hips_pixel_scale = 0.007157 hips_initial_fov = 58.63230142835039 hips_initial_ra = 0 hips_initial_dec = +0 hips_order_min = 3 dataproduct_subtype = color moc_sky_fraction = 1 hipsgen_date = 2019-05-05T06:40Z hipsgen_params = out=/asd-volumes/sc1-asd-volume10/MellingerRGB UPDATE