{"url":"/dataset/sdss-galaxies","name":"SDSS Galaxies","full_name":"SDSS galaxies as imaged by DESI","description_markdown":"This is a dataset of 306,006 galaxies whose coordinates are taken from the \r\nSloan Digital Sky Survey Data Release 7 and a modified catalogue from \r\nBrinchmann+2003 and Wilman+2010. This volume complete sample has \r\nan r-band absolute magnitude limit of $M_r\\leq-20$ and a redshift limit of \r\n$z\\leq0.08$. See Arora+2019 for details.\r\n\r\nThis catalogue covers a wide range of environments from clusters to groups \r\nand field systems. The galaxy images are taken from the Dark Energy \r\nSpectroscopic Instrument, and contain $g$, $r$, and $z$ bands.","description_withheld":null,"homepage":"https://www.github.com/smith42/astroddpm","introduced_date":"2021-11-02","introduced_date_note":null,"introduced_by":{"paper":"/paper/realistic-galaxy-image-simulation-via-score","title":"Realistic galaxy image simulation via score-based generative models","first_author":"Michael J. Smith","url":null},"license":null,"modalities":[],"tasks":[{"name":"Image Generation","url":"/task/image-generation","datasets_with_task":"/datasets/task/image-generation"},{"name":"Galaxy emergent property recreation","url":"/task/galaxy-emergent-property-recreation","datasets_with_task":"/datasets/task/galaxy-emergent-property-recreation"}],"languages":[],"variants":["SDSS Galaxies"],"data_loaders":[{"repo":"https://github.com/Smith42/astroddpm","url":"https://github.com/Smith42/astroddpm","frameworks":[]}],"num_papers_in_archive":1,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[{"leaderboard":"/sota/image-generation-on-sdss-galaxies","task":"Image Generation","dataset_variant":"SDSS Galaxies","rows":1,"metrics":["FID"],"first_row_in_archive_order":{"model":"AstroDDPM","paper":"/paper/realistic-galaxy-image-simulation-via-score","metrics":{"FID":"19"},"code_links":[{"title":"Smith42/astroddpm","url":"https://github.com/Smith42/astroddpm"},{"title":"smith42/synthetic-galaxy-distance","url":"https://github.com/smith42/synthetic-galaxy-distance"}]},"note":"rows are the archive's own order at snapshot; nothing here re-ranks them"}],"papers_with_a_benchmark_row":[{"paper":"/paper/realistic-galaxy-image-simulation-via-score","title":"Realistic galaxy image simulation via score-based generative models","date":"2021-11-02","rows_on_this_dataset":1,"code_links":2,"syntology":{"read_at":"2026-09-24T18:15:14+00:00","samples_harvested":6,"samples_ran":5,"samples_unverified":1,"pointer_only_for_licence":6,"claim":"Per-sample execution on synthesized fixtures; not a correctness claim."}}],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":1,"samples_harvested":6,"samples_ran":5,"samples_unverified":1,"pointer_only_for_licence":6,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}