UPSA
Object Registry
UPSA
Object Registry
1H 0018+2801RXS J002039.5+2840272E 0017.9+28222E 652MAXI J0021+286ACO 21BAX 005.1283+28.6274ClG 0017.9+2822EXSS 0018.0+2823[F81] 9MCXC J0020.6+2840PSZ1 G114.78-33.72PSZ2 G114.79-33.71PSZRX G114.82-33.73RBS 46RX J0020.6+2840RXC J0020.6+2840RXGCC 19ZwCl 0017+2822[AWK2020] 26[B2017] 60[RRB2014] RM J002037.2+283934.2[WHL2012] J002037.2+283934
| Object | Type | Separation | V |
|---|---|---|---|
| LEDA 1843204 | GtowardsCl | 0.05791″ | — |
| SDSS J002037.93+284231.3 | Seyfert1 | 51.94″ | 19.5 |
| 2MASS J00203461+2840569 | GtowardsCl | 69.56″ | — |
| 2MASX J00203715+2839334 | BrightestCG | 128″ | — |
| LEDA 1842728 | GtowardsCl | 197.3″ | — |
| SDSS J002049.83+283810.2 | QSO | 255.9″ | — |
| LEDA 1841212 | GtowardsCl | 260.2″ | — |
| LEDA 1845535 | GtowardsCl | 295.9″ | — |
| SDSS J002101.34+283737.3 | QSO | 384.2″ | — |
| 2MASX J00201685+2846093 | GtowardsGroup | 394.4″ | — |
| 2MASX J00200546+2841018 | GtowardsGroup | 439.4″ | — |
| Archive | Read at (UTC) | Record |
|---|---|---|
| Seeded from the bulk archive load; no per-object fetch yet. | ||
Machine-readable: /api/v1/object/aco-21 · Registry entry updated 2026-08-14.