{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.677","julian_year":2026.677,"time":"2026-09-05T10:02:03.521Z","years_from_j2000":26.677,"frame":"date","applied":"Proper motion, then precession and nutation. The catalogued J2000 position is carried along the great circle the object's own published motion puts it on, at a constant velocity, and the result is referred to the true equator and equinox of this instant. Those are separate things: the motion moves the object, and the rotation turns the grid under it by about fifty arcseconds a year, with nutation adding up to another seventeen.","excluded":"Parallax, the radial-velocity perspective term, aberration and refraction; each is below the accuracy of the catalogued positions themselves. An object with no published proper motion comes back where the catalogue has it rather than at a fabricated zero, and says so with a null pm_ra_mas_yr. A body with no fixed position is not propagated at all — its place comes from an ephemeris, which is what /api/v1/visible answers with."},"slug":"ngc-5775","name":"NGC 5775","class":"barred_spiral_galaxy_sbc","category":"galaxy","object_type":"Barred spiral galaxy SBc","mag":11.43,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":89214240.84751827,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":223.48999999999998,"dec_deg":3.5444444444444443,"epoch_ra_deg":223.827954,"epoch_dec_deg":3.434684,"epoch_moved_arcsec":null,"pm_ra_mas_yr":null,"pm_dec_mas_yr":null,"orbits":null,"semi_major_axis_km":null,"periapsis_km":null,"mass_kg":null,"mass_msun":null,"constellation":"Virgo","discovered":"1786","featured":false,"url":"https://spacecatalog.org/object/ngc-5775","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":12.23,"h_mag":8.12,"j_mag":8.94,"k_mag":7.76,"v_mag":11.43,"redshift":0.00567,"hubble_type":"SBc","wikidata_id":"Q1122804","redshift_cmb":0.006356060682811693,"discovered_by":"William Herschel","ngc_type_code":"G","uncertainties":{"distance_ly":[14498343.407914082,14498343.407914082]},"major_axis_arcmin":3.7,"minor_axis_arcmin":0.85,"wikipedia_article":"NGC 5775","position_angle_deg":148,"surface_brightness":22.62,"radial_velocity_km_s":1695},"designations":[{"catalog":"2MASX","designation":"2MASX J14535765+0332401"},{"catalog":"IRAS","designation":"IRAS 14514+0344"},{"catalog":"IRAS","designation":"IRAS F14514+0344"},{"catalog":"LEDA","designation":"LEDA 53247"},{"catalog":"MCG","designation":"MCG +01-38-014"},{"catalog":"NGC","designation":"NGC 5775"},{"catalog":"PGC","designation":"PGC 53247"},{"catalog":"SDSS","designation":"SDSS J145357.59+033240.0"},{"catalog":"SDSS","designation":"SDSS J145357.61+033240.0"},{"catalog":"SDSS","designation":"SDSS J145357.62+033240.1"},{"catalog":"UGC","designation":"UGC 9579"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T19:50:56.720Z","attribution":"Data from SpaceCatalog.org. Individual records carry their source and license in `source`; attribution is required for CC-BY and CC-BY-SA rows."}