{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.680","julian_year":2026.68,"time":"2026-09-06T09:34:06.396Z","years_from_j2000":26.68,"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":"ngc6175-ned02","name":"NGC6175 NED02","class":"irregular_galaxy_i","category":"galaxy","object_type":"Irregular galaxy I","mag":14.73,"mag_band":"B","abs_mag":null,"abs_mag_band":null,"distance_ly":412552372.8892937,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":247.4919166666667,"dec_deg":40.62855555555556,"epoch_ra_deg":247.718353,"epoch_dec_deg":40.569458,"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":"Hercules","discovered":null,"featured":false,"url":"https://spacecatalog.org/object/ngc6175-ned02","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":14.73,"h_mag":9.88,"j_mag":10.65,"k_mag":9.59,"redshift":0.02883,"hubble_type":"I","redshift_cmb":0.02890350808743558,"ngc_type_code":"G","uncertainties":{"distance_ly":[21914297.998527225,21914297.998527225]},"major_axis_arcmin":1.32,"minor_axis_arcmin":1.05,"position_angle_deg":121,"surface_brightness":24.04,"radial_velocity_km_s":8518},"designations":[{"catalog":"2MASX","designation":"2MASX J16295808+4037432"},{"catalog":"MCG","designation":"MCG +07-34-087 NED02"},{"catalog":"OpenNGC","designation":"NGC6175 NED02"},{"catalog":"PGC","designation":"PGC 200339"},{"catalog":"SDSS","designation":"SDSS J162958.06+403742.6"},{"catalog":"SDSS","designation":"SDSS J162958.06+403742.7"},{"catalog":"SDSS","designation":"SDSS J162958.06+403742.8"},{"catalog":"UGC","designation":"UGC 10422 NED02"}],"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."}