{"release":{"id":"DR1","released_on":"2026-08-21","doi":null,"url":"https://spacecatalog.org/releases#dr1"},"epoch":{"requested":"now","label":"J2026.670","julian_year":2026.67,"time":"2026-09-02T18:55:33.438Z","years_from_j2000":26.67,"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-2835","name":"NGC 2835","class":"spiral_galaxy_sc","category":"galaxy","object_type":"Spiral galaxy Sc","mag":10.64,"mag_band":"V","abs_mag":null,"abs_mag_band":null,"distance_ly":56218157.34855299,"distance_method":"redshift (CMB frame), flat ΛCDM with H0 = 70 km/s/Mpc","ra_deg":139.47045833333334,"dec_deg":-22.354666666666667,"epoch_ra_deg":139.773822,"epoch_dec_deg":-22.467045,"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":"Hydra","discovered":"1884","featured":false,"url":"https://spacecatalog.org/object/ngc-2835","radius_km":null,"radius_kind":null,"data_quality":null,"description":null,"properties":{"b_mag":11.06,"h_mag":8.14,"j_mag":8.81,"k_mag":7.92,"v_mag":10.64,"redshift":0.002957,"hubble_type":"Sc","wikidata_id":"Q1051221","redshift_cmb":0.00401237565930912,"discovered_by":"Edward Emerson Barnard","ngc_type_code":"G","uncertainties":{"distance_ly":[14202627.017565181,14202627.017565181]},"major_axis_arcmin":6.43,"minor_axis_arcmin":3.72,"wikipedia_article":"NGC 2835","position_angle_deg":179,"surface_brightness":23.39,"radial_velocity_km_s":885},"designations":[{"catalog":"2MASX","designation":"2MASX J09175290-2221168"},{"catalog":"ESO","designation":"ESO 564-035"},{"catalog":"ESO","designation":"ESO 564-35"},{"catalog":"ESO-LV","designation":"ESO-LV 564-0350"},{"catalog":"IRAS","designation":"IRAS 09156-2208"},{"catalog":"IRAS","designation":"IRAS F09156-2208"},{"catalog":"LEDA","designation":"LEDA 26259"},{"catalog":"MCG","designation":"MCG -04-22-008"},{"catalog":"NGC","designation":"NGC 2835"},{"catalog":"PGC","designation":"PGC 26259"},{"catalog":"UGCA","designation":"UGCA 157"}],"source":{"id":"openngc","name":"OpenNGC","url":"https://github.com/mattiaverga/OpenNGC","license":"CC-BY-SA-4.0"},"updated_at":"2026-09-02T18:38:07.546Z","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."}