{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.667","julian_year":2026.667,"time":"2026-09-01T14:29:35.366Z","years_from_j2000":26.667,"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":"ic-112","name":"IC 112","class":"spiral_galaxy_sd","category":"galaxy","object_type":"Spiral galaxy Sd","mag":14.17,"mag_band":"B","abs_mag":null,"abs_mag_band":null,"distance_ly":257786359.22245184,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":21.512583333333332,"dec_deg":11.442972222222222,"epoch_ra_deg":21.867383,"epoch_dec_deg":11.582708,"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":"Pisces","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/ic-112","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":14.17,"h_mag":11.56,"j_mag":12.22,"k_mag":11.29,"redshift":0.019253,"hubble_type":"Sd","wikidata_id":"Q3715259","redshift_cmb":0.018203578554937483,"ngc_type_code":"G","uncertainties":{"distance_ly":[17569025.979173798,17569025.979173798]},"major_axis_arcmin":0.72,"minor_axis_arcmin":0.37,"position_angle_deg":127,"surface_brightness":21.61,"radial_velocity_km_s":5716},"designations":[{"catalog":"2MASX","designation":"2MASX J01260303+1126347"},{"catalog":"IC","designation":"IC 112"},{"catalog":"IRAS","designation":"IRAS 01234+1110"},{"catalog":"IRAS","designation":"IRAS F01234+1110"},{"catalog":"LEDA","designation":"LEDA 5328"},{"catalog":"MCG","designation":"MCG +02-04-047"},{"catalog":"PGC","designation":"PGC 5328"},{"catalog":"SDSS","designation":"SDSS J012602.99+112634.6"},{"catalog":"UGC","designation":"UGC 1008"}],"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."}