{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.682","julian_year":2026.682,"time":"2026-09-07T04:32:01.916Z","years_from_j2000":26.682,"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":"ugc-1330","name":"UGC 1330","class":"spiral_galaxy_sd","category":"galaxy","object_type":"Spiral galaxy Sd","mag":17.24,"mag_band":"B","abs_mag":-16.683384903891703,"abs_mag_band":"B","distance_ly":198656534.9183162,"distance_method":"luminosity distance from a photometric redshift (GLADE+), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":28.031227,"dec_deg":35.037823,"epoch_ra_deg":28.423772,"epoch_dec_deg":35.170695,"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":"Triangulum","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/ugc-1330","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":17.24,"h_mag":14.809,"j_mag":15.424,"k_mag":14.398,"redshift":0.0144314172157,"hubble_type":"Sd","redshift_cmb":0.0140713965108909,"uncertainties":{"distance_ly":[46336286.45093026,46491474.963032916],"stellar_mass_solar":[280253267.3978079,280253267.3978079]},"major_axis_arcmin":0.23,"minor_axis_arcmin":0.115,"morphology_source":"SIMBAD (2003A&A...412...45P, quality E)","position_angle_deg":85,"stellar_mass_solar":560506534.7956158},"designations":[{"catalog":"2MASX","designation":"2MASX 01520749+3502161"},{"catalog":"PGC","designation":"PGC 6919"},{"catalog":"WISExSCOS","designation":"WISExSCOS J015207.45+350215.2"}],"source":{"id":"glade_plus","name":"GLADE+ (Galaxy List for the Advanced Detector Era)","url":"https://cdsarc.cds.unistra.fr/viz-bin/cat/VII/291","license":"VizieR terms; cite Dalya+ 2022 (2022MNRAS.514.1403D)"},"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."}