{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.664","julian_year":2026.664,"time":"2026-08-31T12:01:25.130Z","years_from_j2000":26.664,"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":"m95","name":"M95","class":"spiral_galaxy_sb","category":"galaxy","object_type":"Spiral galaxy Sb","mag":9.77,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":52151910.37232995,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":160.99041666666668,"dec_deg":11.703805555555554,"epoch_ra_deg":161.34477,"epoch_dec_deg":11.563102,"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":"Leo","discovered":"1781","featured":false,"url":"https://spacecatalog.org/object/m95","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":10.58,"h_mag":6.95,"j_mag":7.57,"k_mag":6.67,"v_mag":9.77,"redshift":0.00256,"hubble_type":"Sb","wikidata_id":"Q14351","redshift_cmb":0.0037229791903750087,"discovered_by":"Pierre Méchain","ngc_type_code":"G","uncertainties":{"distance_ly":[14174381.727223296,14174381.727223296]},"major_axis_arcmin":7.23,"minor_axis_arcmin":4.45,"wikipedia_article":"Messier 95","position_angle_deg":11,"surface_brightness":23.26,"radial_velocity_km_s":766},"designations":[{"catalog":"2MASX","designation":"2MASX J10435773+1142129"},{"catalog":"IRAS","designation":"IRAS 10413+1158"},{"catalog":"IRAS","designation":"IRAS F10413+1157"},{"catalog":"LEDA","designation":"LEDA 32007"},{"catalog":"MCG","designation":"MCG +02-28-001"},{"catalog":"Messier","designation":"M 95"},{"catalog":"NGC","designation":"NGC 3351"},{"catalog":"PGC","designation":"PGC 32007"},{"catalog":"SDSS","designation":"SDSS J104357.69+114213.6"},{"catalog":"SDSS","designation":"SDSS J104357.70+114213.7"},{"catalog":"UGC","designation":"UGC 5850"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"updated_at":"2026-08-30T09:56:50.739Z","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."}