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Subject
- photometry[remove]864
- surveys[remove]864
- optical astronomy415
- infrared photometry411
- galaxies285
- redshifted193
- sloan photometry169
- wide-band photometry123
- infrared sources116
- spectroscopy90
- quasars82
- variable stars78
- infrared astronomy74
- catalogs71
- x-ray sources68
- proper motions54
- active galactic nuclei50
- redshifted / redshift43
- ultraviolet photometry42
- astronomical object identification41